The force between two long parallel wires A and B carrying current is `0.004 Nm^(-1)`. The conductors are 0.01 m apart. If the current in conductor A

The force between two long parallel wires A and B carrying current is `0.004 Nm^(-1)`. The conductors are 0.01 m apart. If the current in conductor A
by

1 Answer

Answer :

The force between two long parallel wires A and B carrying current is `0.004 Nm^(-1)`. The conductors are 0.01 m ... . `50 A ` C. `10 A` D. `100 A`
by
selected by

Related questions

Force per meter on two wires carrying a current of 1 A placed 1 m apart is equal to A. 6.7 × 10-11 N B. 9.0 × 109 N C. 2.0 × 10-7 N D. 3.0 × 10-4 N

Description : Force per meter on two wires carrying a current of 1 A placed 1 m apart is equal to A. 6.7 × 10-11 N B. 9.0 × 109 N C. 2.0 × 10-7 N D. 3.0 × 10-4 N

Last Answer :  2.0 × 10-7 N

Two infinitely long parallel conductors in vacuum any separated 1 metre between centers >then a current of 1 ampere flows the. uk each conductor, produce on each other a force of (a) 2 x 1(T2 N/m) (b) 2 x KT3 N/m (c) 2 x 10"5 N/m (d) 2x 1(T7 N/m)

Description : Two infinitely long parallel conductors in vacuum any separated 1 metre between centers >then a current of 1 ampere flows the. uk each conductor, produce on each other a force of (a) 2 x 1(T2 N/m) (b) 2 x KT3 N/m (c) 2 x 10"5 N/m (d) 2x 1(T7 N/m)

Last Answer : (d) 2x 1(T7 N/m)

The force between two long parallel conductors is inversely proportional to (a) radius of conductors (b) current in one conductor (c) product of current in two conductors (d) distance between the conductors

Description : The force between two long parallel conductors is inversely proportional to (a) radius of conductors (b) current in one conductor (c) product of current in two conductors (d) distance between the conductors

Last Answer : (d) distance between the conductors

What is the typical separation between the two conductors in a parallel wire line? A. 0.001 to 0.01 m B. 200 to 500 mm C. 0.635 to 15.24 cm D. 2.5 to 5 in.

Description : What is the typical separation between the two conductors in a parallel wire line? A. 0.001 to 0.01 m B. 200 to 500 mm C. 0.635 to 15.24 cm D. 2.5 to 5 in.

Last Answer : C. 0.635 to 15.24 cm

Assertion three infinitely long current carrying wires have equal currents and they are equally spaced. The magnitude of magnetic force on all three i

Description : Assertion three infinitely long current carrying wires have equal currents and they are equally spaced. The magnitude of magnetic force on all three i

Last Answer : Assertion three infinitely long current carrying wires have equal currents and they are equally spaced. The ... Reason Net force on wire-2 is zero.

Three long straight wires `A`, `B` and `C` are carrying current as shown in figure. Then the resultant force on `B` is directed

Description : Three long straight wires `A`, `B` and `C` are carrying current as shown in figure. Then the resultant force on `B` is directed

Last Answer : Three long straight wires `A`, `B` and `C` are carrying current as shown in figure. Then ... outward D. Perpendicular to the plane of paper and inward

Two parallel wires carrying current in the same direction attract each other while two beams of electrons travelling in the same direction repel each

Description : Two parallel wires carrying current in the same direction attract each other while two beams of electrons travelling in the same direction repel each

Last Answer : Two parallel wires carrying current in the same direction attract each other while two beams of ... force between them D. magnetic force between them

Two parallel conductors are separated by a distance, d carrying a current, I in the same direction. The magnetic

Description : Two parallel conductors are separated by a distance, d carrying a current, I in the same direction. The magnetic field along a line running parallel to the conductors and midway between them is (A) zero (B) proportional to I (C) proportional to d (D) proportional to the permeability of the medium. 

Last Answer : The  magnetic  field  along  the conductor at  the  midway point  is  zero  because  equal  magnitide  of  field  are produced  in  each conductor   therefore  the  resultant  magnetic field  at  the  midway  is  zero.

Two straight infinitely long current carrying wires are kept along Z-axis at the coordinates (0,a,0) and (0, -a, 0) respectively, as shown in the figu

Description : Two straight infinitely long current carrying wires are kept along Z-axis at the coordinates (0,a,0) and (0, -a, 0) respectively, as shown in the figu

Last Answer : Two straight infinitely long current carrying wires are kept along Z-axis at the coordinates (0,a,0) and ... the X-axis will be approximately B. C. D.

The two conductors of a transmission line carry equal current I in opposite directions. The force on each conductor is (a) proportional to 7 (b) proportional to X (c) proportional to distance between the conductors (d) inversely proportional to I

Description : The two conductors of a transmission line carry equal current I in opposite directions. The force on each conductor is (a) proportional to 7 (b) proportional to X (c) proportional to distance between the conductors (d) inversely proportional to I

Last Answer : (b) proportional to X

The temperature coefficient of copper is `0.004^(@)C^(-1)`. Find the resistance of a 5 m long copper wire of diameter 0.2 mm at `100^(@)C`, if the res

Description : The temperature coefficient of copper is `0.004^(@)C^(-1)`. Find the resistance of a 5 m long copper wire of diameter 0.2 mm at `100^(@)C`, if the res

Last Answer : The temperature coefficient of copper is `0.004^(@)C^(-1)`. Find the resistance of a 5 m long copper wire of ... `0^(@)C` is `1.7xx10^(-8) Omega` m.

Two parallel wires are carrying electric currents of equal magnitude and in the same direction. They excert

Description : Two parallel wires are carrying electric currents of equal magnitude and in the same direction. They excert

Last Answer : Two parallel wires are carrying electric currents of equal magnitude and in the same direction. They ... other D. Neither attract nor repel each other

Two parallel wires carrying currents in opposite directions will: w) attract each other x) repel each other y) cause an electric arc to form z) not affect each other

Description : Two parallel wires carrying currents in opposite directions will: w) attract each other x) repel each other y) cause an electric arc to form z) not affect each other

Last Answer : ANSWER: X -- REPEL EACH OTHER

A pair of current-carrying conductors is not considered a transmission line unless it is at least ___ λ long at the signal frequency. A. 0.1 B. 0.3 C. 0.2 D. 0.4

Description : A pair of current-carrying conductors is not considered a transmission line unless it is at least ___ λ long at the signal frequency. A. 0.1 B. 0.3 C. 0.2 D. 0.4

Last Answer : A. 0.1

Current carried by each of the two long parallel conductors is doubled. If their separation is also doubled , force between them is

Description : Current carried by each of the two long parallel conductors is doubled. If their separation is also doubled , force between them is

Last Answer : Increase two fold

A steel rod of sectional area 250 sq. mm connects two parallel walls 5 m apart. The nuts at the ends were tightened when the rod was heated to 100°C. If steel = 0.000012/C°, Esteel = 0.2 MN/mm2 , the tensile force developed at a temperature of 50°C, is (A) 80 N/mm2 (B) 100 N/mm2 (C) 120 N/mm2 (D) 150 N/mm2 Answer: Option

Description : A steel rod of sectional area 250 sq. mm connects two parallel walls 5 m apart. The nuts at the  ends were tightened when the rod was heated to 100°C. If steel = 0.000012/C°, Esteel = 0.2  MN/mm2 , the ... N/mm2 (B) 100 N/mm2 (C) 120 N/mm2 (D) 150 N/mm2 Answer: Option 

Last Answer : (C) 120 N/mm

`A, B` and `C` are parallel conductors of equal length carrying currents `I, I` and `2I` respectively. Distance between `A` and `B` is `x`. Distance b

Description : `A, B` and `C` are parallel conductors of equal length carrying currents `I, I` and `2I` respectively. Distance between `A` and `B` is `x`. Distance b

Last Answer : `A, B` and `C` are parallel conductors of equal length carrying currents `I, I` and `2I` respectively. Distance ... F_(2)` D. `F_(1) = -F_(2)`

(a) If the radius of the Br ion is 0.182 nm, how large a cation can fit in each of the tetrahedral hole. (b) AgI crystallizes in a cubic closed packed ZnS structure. What fraction of tetrahedral site is occupied by Ag ion ? (c) At what temp. range, most of the metals becomes super conductors ?

Description : (a) If the radius of the Br ion is 0.182 nm, how large a cation can fit in each of the tetrahedral hole. (b) AgI crystallizes in a cubic closed packed ZnS structure. What fraction of tetrahedral site ... Ag ion ?  (c) At what temp. range, most of the metals becomes super conductors ?

Last Answer : (a) For a tetrahedron the limiting ratio is 0.225 – 0.414 For largest cation highest value 0.414 would be considered. r + / r– = 0.414 r + = 0.414 × 0.182 = 0.075 nm. (b) In FCC there are 8 tetrahedral voids. Out of this ½ is occupied by Ag cation. (c) 2 k – 5 k.

A single mode optical fiber has a core diameter of _____ nm. ∙ a. 0.1 ∙ b. 0.01 ∙ c. 0.2 ∙ d. 0.05

Description : A single mode optical fiber has a core diameter of _____ nm. ∙ a. 0.1 ∙ b. 0.01 ∙ c. 0.2 ∙ d. 0.05

Last Answer : a. 0.1

A cannon of weight 10 tonnes fires a shell of 50 kg with a muzzle velocity of 900 m/sec at an angle of 30?. The time taken for the shell to emerge from the barrel is 0.004 sec. The velocity of the cannon would be a.3.9 m/sec b.7.8 m/sec c.8.95 m/sec d.1.95 m/sec e.5.85 m/sec

Description : A cannon of weight 10 tonnes fires a shell of 50 kg with a muzzle velocity of 900 m/sec at an angle of 30?. The time taken for the shell to emerge from the barrel is 0.004 sec. The velocity of the cannon would be a.3.9 m/sec b.7.8 m/sec c.8.95 m/sec d.1.95 m/sec e.5.85 m/sec

Last Answer : a. 3.9 m/sec

9. When is the force experienced by a current–carrying conductor placed in a magnetic field largest? -Physics-10

Description : 9. When is the force experienced by a current–carrying conductor placed in a magnetic field largest? -Physics-10

Last Answer : When the direction of the current is perpendicular to the direction of the magnetic field is when the force experienced is the largest.

Why and when does a current carrying conductor kept in a magnetic field experience force? List the factors on which direction of this force depends? -Science

Description : Why and when does a current carrying conductor kept in a magnetic field experience force? List the factors on which direction of this force depends? -Science

Last Answer : The drifting of free electrons of a conductor in a definite direction causes the current to flow through it. When such conductor is placed in a uniform magnetic field, each drifted electron of a ... depends on (i) direction of current through the conductor, and (ii) direction of magnetic field.

(a) Describe activity with labelled diagram to show that a current carrying conductor experience a force in a magnetic field. (b) State the rule to determine the direction of force. -Science

Description : (a) Describe activity with labelled diagram to show that a current carrying conductor experience a force in a magnetic field. (b) State the rule to determine the direction of force. -Science

Last Answer : (a) Without using a magnet, magnetic field can be produced by flowing the current through a straight conductor or a solenoid. Aim : To show that magnetic field exerts a force on a current carrying ... current, then the thumb will point in the direction of motion or the force acting on the conductor.

With the help of a diagram of experimental setup describe an activity to show that the force acting on a current carrying conductor placed in a magnetic field increases with increase in field strength. -Science

Description : With the help of a diagram of experimental setup describe an activity to show that the force acting on a current carrying conductor placed in a magnetic field increases with increase in field strength. -Science

Last Answer : Magnetic Effects of Electric Current Chapter Wise Important Questions Class 10 Science October 1, 2019 by Bhagya Important Question for Class 10 Science Magnetic Effects of Electric Current PDF ... a current carrying conductor placed in a magnetic field increases with increase in field strength.

For what position of a current carrying conductor placed in a magnetic field, the maximum force acts on it? -Science

Description : For what position of a current carrying conductor placed in a magnetic field, the maximum force acts on it? -Science

Last Answer : To obtain the maximum force acting on the current carrying conductor placed in a magnetic field, the conductor should be placed perpendicular to the magnetic field, i.e. the direction of current should be at right angle to the direction of the magnetic field.

State the expression for the magnetic force on straight current carrying conductor placed in uniform magnetic field

Description : State the expression for the magnetic force on straight current carrying conductor placed in uniform magnetic field

Last Answer : State the expression for the magnetic force on straight current carrying conductor placed in uniform magnetic field

Basic electrical motor action depends on _______________. A. a conductor rotated within a magnetic field B. a current carrying conductor placed in a magnetic field C. the relative force of the commutator and commutating poles D. the relative force of the armature and interpoles

Description : Basic electrical motor action depends on _______________. A. a conductor rotated within a magnetic field B. a current carrying conductor placed in a magnetic field C. the relative force of the commutator and commutating poles D. the relative force of the armature and interpoles

Last Answer : Answer: B

Find the Lorentz force due to a conductor of length 2m carrying a current of 1.5A and magnetic flux density of 12 units. a) 24 b) 36 c) 32 d) 45

Description : Find the Lorentz force due to a conductor of length 2m carrying a current of 1.5A and magnetic flux density of 12 units. a) 24 b) 36 c) 32 d) 45

Last Answer : c) 32

Fleming's left hand rule is used to find (a) direction of magnetic field due to current carrying conductor (b) direction of flux in a solenoid (c) direction of force on a current carrying conductor in a magnetic field (d) polarity of a magnetic pole

Description : Fleming's left hand rule is used to find (a) direction of magnetic field due to current carrying conductor (b) direction of flux in a solenoid (c) direction of force on a current carrying conductor in a magnetic field (d) polarity of a magnetic pole

Last Answer : (c) direction of force on a current carrying conductor in a magnetic field

The force per unit length of two conductors carrying equal currents of 5A separated by a distance of 20cm in air(in 10 -6 order) a) 25 b) 35 c) 40 d) 50

Description : The force per unit length of two conductors carrying equal currents of 5A separated by a distance of 20cm in air(in 10 -6 order) a) 25 b) 35 c) 40 d) 50

Last Answer : a) 25

Figure shows, three long straight wires parallel and equally speed with identical currents. Then, the force acting on each wire due to the other is

Description : Figure shows, three long straight wires parallel and equally speed with identical currents. Then, the force acting on each wire due to the other is

Last Answer : Figure shows, three long straight wires parallel and equally speed with identical currents. Then, the force acting on ... `F_(b) gt F_(a) gt F_(c)`

Find the height of an infinitely long conductor from point P which is carrying current of 6.28A and field intensity is 0.5 units. a) 0.5 b) 2 c) 6.28 d) 1

Description : Find the height of an infinitely long conductor from point P which is carrying current of 6.28A and field intensity is 0.5 units. a) 0.5 b) 2 c) 6.28 d) 1

Last Answer : b) 2

A wires PQRS carrying a current I runs along three edges of a cube of side l as shown in figure. There exists a uniform magnetic field of magnitude B

Description : A wires PQRS carrying a current I runs along three edges of a cube of side l as shown in figure. There exists a uniform magnetic field of magnitude B

Last Answer : A wires PQRS carrying a current I runs along three edges of a cube of side l as shown in figure. There exists ... sqrt(3)IB` C. `sqrt(2I) lB` D. 2Ilb

The force between two long parallel conductors is inversely proportional to

Last Answer : The force between two long parallel conductors is inversely proportional to distance between the conductors.

A current of 5.8 A flows through a 0.25 m long straight conductor which is kept perpendicular in a region of uniform magnetic field of 3.7 T . The force on conductor is a) 5.4 N b) 2.4 N c) 3.4 N d) 6.4 N

Description : A current of 5.8 A flows through a 0.25 m long straight conductor which is kept perpendicular in a region of uniform magnetic field of 3.7 T . The force on conductor is a) 5.4 N b) 2.4 N c) 3.4 N d) 6.4 N

Last Answer : a) 5.4 N

Two parallel long wires carry currents `i_(1) "and" i_(2)` with `i_(1) gt i_(2)`.When the currents are in the same direction then the magnetic field m

Description : Two parallel long wires carry currents `i_(1) "and" i_(2)` with `i_(1) gt i_(2)`.When the currents are in the same direction then the magnetic field m

Last Answer : Two parallel long wires carry currents `i_(1) "and" i_(2)` with `i_(1) gt i_(2)`.When the currents are in the same ... 4` B. `5:3` C. `7:11` D. `11:7`

Two straight wires each 10 cm long are parallel to one another and separated by 2 cm. when the current flowing in them is 30 A and 40 A respectively t

Description : Two straight wires each 10 cm long are parallel to one another and separated by 2 cm. when the current flowing in them is 30 A and 40 A respectively t

Last Answer : Two straight wires each 10 cm long are parallel to one another and separated by 2 cm. when the current flowing in ... 2xx10^(-3)N` D. `10.2x10^(-3)N`

A current carrying conductor making an electrical contact with a wiring metal conduit is indicated by a _____________. A. low switchboard wattmeter reading B. reading of 1.0 on the power factor meter C. high switchboard voltmeter reading D. totally darkened switchboard ground-detecting light

Description : A current carrying conductor making an electrical contact with a wiring metal conduit is indicated by a _____________. A. low switchboard wattmeter reading B. reading of 1.0 on the power factor meter C. high switchboard voltmeter reading D. totally darkened switchboard ground-detecting light

Last Answer : Answer: D

Find the flux density due to a conductor of length 6m and carrying a current of 3A(in 10 -7 order) a) 1 b) 10 c) 100 d) 0.1

Description : Find the flux density due to a conductor of length 6m and carrying a current of 3A(in 10 -7 order) a) 1 b) 10 c) 100 d) 0.1

Last Answer : a) 1

A hydrogen atom in the normal state is located at a distance `r = 2.5 cm` from a long straight conductor carrying a current `I = 10A`. Find the maximu

Description : A hydrogen atom in the normal state is located at a distance `r = 2.5 cm` from a long straight conductor carrying a current `I = 10A`. Find the maximu

Last Answer : A hydrogen atom in the normal state is located at a distance `r = 2.5 cm` from a long straight ... = 10A`. Find the maximum force acting on the atom.

A sqaure loop `ABCD`, carrying a current `I_(2)` is placed near and coplanar with a long straight conductor `XY`, carrying a current `I_(1)` as shwon

Description : A sqaure loop `ABCD`, carrying a current `I_(2)` is placed near and coplanar with a long straight conductor `XY`, carrying a current `I_(1)` as shwon

Last Answer : A sqaure loop `ABCD`, carrying a current `I_(2)` is placed near and coplanar with a long straight conductor `XY` ... )/(2pi)` D. `(2mu_(0)Ii)/(3pi)`

Which of the following is the demerit of a 'constant voltage transmission system' ? (a) Increase of short-circuit current of the system (b) Availability of steady voltage at all loads at the line terminals (c) Possibility of better protection for the line due to possible use of higher terminal reactants (d) Improvement of power factor at times of moderate and heavy loads (e) Possibility of carrying increased power for a given conductor size in case of long-distance heavy power transmission

Description : Which of the following is the demerit of a 'constant voltage transmission system' ? (a) Increase of short-circuit current of the system (b) Availability of steady voltage at all loads at ... of carrying increased power for a given conductor size in case of long-distance heavy power transmission

Last Answer : (a) Increase of short-circuit current of the system

Which of the following is the demerit of a 'constant voltage transmission system' ? (a) Increase of short-circuit current of the system (b) Availability of steady voltage at all loads at the line terminals (c) Possibility of better protection for the line due to possible use of higher terminal reactants (d) Improvement of power factor at times of moderate and heavy loads (e) Possibility of carrying increased power for a given conductor size in case of long-distance heavy power transmission

Description : Which of the following is the demerit of a 'constant voltage transmission system' ? (a) Increase of short-circuit current of the system (b) Availability of steady voltage at all loads at ... of carrying increased power for a given conductor size in case of long-distance heavy power transmission

Last Answer : (a) Increase of short-circuit current of the system

A 300 mm long conductor is carrying a current of 10 A and is situated at...

Description : A 300 mm long conductor is carrying a current of 10 A and is situated at right angles to a magnetic field having a flux density of 0.8 T ; the force on the conductor will be

Last Answer : A 300 mm long conductor is carrying a current of 10 A and is situated at right angles to a magnetic field having a flux density of 0.8 T ; the force on the conductor will be 2.4 N.

When current is parallel to magnetic fields, force on conductor is A. zeroB. infinite C. 2 times D. same

Description : When current is parallel to magnetic fields, force on conductor is A. zeroB. infinite C. 2 times D. same

Last Answer : zero

A conductor of length L has current I passing through it, when it is placed parallel to a magnetic field. The force experienced by the conductor will be (a) zero (b) BLI (c) B2LI (d) BLI2

Description : A conductor of length L has current I passing through it, when it is placed parallel to a magnetic field. The force experienced by the conductor will be (a) zero (b) BLI (c) B2LI (d) BLI2

Last Answer : (a) zero

Two infinitely long conductors carrying equal currents are shaped as shown. The short sectins are all of equal lengths. The point P is located symmetr

Description : Two infinitely long conductors carrying equal currents are shaped as shown. The short sectins are all of equal lengths. The point P is located symmetr

Last Answer : Two infinitely long conductors carrying equal currents are shaped as shown. The short sectins are all of equal lengths. ... zero B. B C. D. `sqrt(2)B`

Two materials have resistance temperature coefficients of 0.004 and ...

Description : Two materials have resistance temperature coefficients of 0.004 and 0.0002 respectively at a given temperature. In what ratio should the wires made of these materials be connected in series so as to have an overall temperature coefficient of 0.002?

Last Answer : Two materials have resistance temperature coefficients of 0.004 and 0.0002 respectively at a given temperature. In 9:10 ratio should the wires made of these materials be connected in series so as to have an overall temperature coefficient of 0.002.

Two wires that are bent 90 degrees apart. A. Hertz B. Dipole C. Log-periodic D. Rhomic

Description : Two wires that are bent 90 degrees apart. A. Hertz B. Dipole C. Log-periodic D. Rhomic

Last Answer : B. Dipole

What’s greater 0.004 or 0.04?

Description : What’s greater 0.004 or 0.04?

Last Answer : 0.04