Description : A circular flexible loop of wire of radius r carrying a current I is placed in a uniform magnetic field B . If B is doubled, then tension in the loop
Last Answer : A circular flexible loop of wire of radius r carrying a current I is placed in a uniform magnetic field ... is doubled C. is halved D. becomes 4 times
Description : Assertion Net torque in the current carrying loop placed in a uniform magnetic field (pointing inwards) is zero. Reasonl Magnetic moment (M) is inward
Last Answer : Assertion Net torque in the current carrying loop placed in a uniform magnetic field (pointing inwards) ... . Reasonl Magnetic moment (M) is inwards.
Description : Assertion A flexeble wire loop of irregular shape carrying current when placed in a uniform external magnetic field acquires a circular shape. Reason
Last Answer : Assertion A flexeble wire loop of irregular shape carrying current when placed in a uniform external ... circular shape is having the greatert area.
Description : The magnetic field existing in a region is gicen by `vecB =B_0(1+(x)/(l))vec k.` A square loop of edge l and carrying a current I, is placed with its
Last Answer : The magnetic field existing in a region is gicen by `vecB =B_0(1+(x)/(l))vec k.` A square loop of edge l and ... ` B. zero C. `B_(0)Il` D. `4B_(0)Il`
Description : A current carrying loop is placed in a uniform magnetic field. The torque acting on it does not depend upon
Last Answer : A current carrying loop is placed in a uniform magnetic field. The torque acting on it does not ... turns in the loop D. strength of the current
Description : A conducting loop carrying a current `I` is placed in a uniform magnetic field ponting into the plane of the paper as shown. The loop will have a tend
Last Answer : A conducting loop carrying a current `I` is placed in a uniform magnetic field ponting into the plane of the ... +ve X-axis D. move towards -ve X-axis
Description : A conducting loop is placed in a uniform magnetic field with its plane perpendicular to the field with its plane perpendicular to the field. An emf is
Last Answer : A conducting loop is placed in a uniform magnetic field with its plane perpendicular to the field ... . the loop is deformed from the original shape
Description : A solenoid has length `0.4cm`, radius 1 cm and 400 turns of wire. If a current fo 5 A is passed through this solenoid, then what is the magnetic field
Last Answer : A solenoid has length `0.4cm`, radius 1 cm and 400 turns of wire. If a current fo 5 A is passed through this ... `6.28xx10^(-7)T` D. `6.28xx10^(-6)T`
Description : 1. Consider a circular loop of wire lying in the plane of the table. Let the current pass through the loop clockwise. Apply the right-hand rule to find out the direction of the magnetic field inside and outside the loop. -Physics-10
Last Answer : Solution: For the downward direction of the current, the direction of the magnetic field will be as if emerging from the table outside the loop and merging with the table inside the loop. Similarly, ... the table outside the loop and merging with the table inside the loop, as shown in the figure.
Description : A current l flows through a closed loop as shown in figure .The magnetic field at the centre O is
Last Answer : A current l flows through a closed loop as shown in figure .The magnetic field at the centre O is A. ... )l)/(2piR)(theta+sintheta)` D. None of these
Description : Describe an activity to show that the magnetic field lines produced when current is passed through the circular coil. -Biology
Last Answer : Aim : To study the characteristics of magnetic field produced by a current carrying circular coil at its centre. Apparatus Required : Rectangular cardboard having two holes, Thick copper circular coils of different ... the coil.Field lines keep on diverging as we move away from the centre of loop.
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
Description : iv) A rectangular coil free to rotate is placed in uniform magnetic field with its plane parallel to the magnetic lines of force. Then the coil willa) rotate to maximize the magnetic flux through ... since the magnetic flux through its plane is zero.d) experience the constant torque equal to NBIA
Last Answer : iv) A rectangular coil free to rotate is placed in uniform magnetic field with its plane parallel ... d) experience the constant torque equal to NBIA
Description : On meter length of wires carriers a constant current. The wire is bent to from a circular loop. The magnetic field at the centre of this loop is `B`.
Last Answer : On meter length of wires carriers a constant current. The wire is bent to from a circular loop. The magnetic field at ... B. `4B` C. `B/4` D. `16B`
Description : Consider the circular loop having current I nad with central point O. the magnetic field at the central point O is
Last Answer : Consider the circular loop having current I nad with central point O. the magnetic field at the central point ... . `(3mu_(0)i)/(7R)` acting downward
Description : The magnetic field due to a current carrying circular loop of radius 3 cm at a point on the axis at a distance of 4cm from the centre is `54muT`. What
Last Answer : The magnetic field due to a current carrying circular loop of radius 3 cm at a point on the axis at a distance of ... T` C. `125 mu T` D. `75 mu T`
Description : A current loop in a magnetic field
Last Answer : A current loop in a magnetic field A. experiences a torque whether the field is uniform or ... two orientations one stable while the other is unstable
Description : The induced current can be increased by: a. Using strong magnetic field b. moving loop faster c. Replacing loop by coil d. all of above
Last Answer : d. all of above
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.
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.
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.
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
Description : A current of `10` ampere is flowing in a wire of length `1.5m`. A force of `15 N` acts on it when it is placed in a uniform magnetic field of `2` tesl
Last Answer : A current of `10` ampere is flowing in a wire of length `1.5m`. A force of `15 N` acts on it when it is placed ... `45^(@)` C. `60^(@)` D. `90^(@)`
Description : A circular coil of `20turns` and radius `10cm` carries a current of `5A`. It is placed in a uniform magnetic field of `0*10T`. Find the torque acting
Last Answer : A circular coil of `20turns` and radius `10cm` carries a current of `5A`. It is placed in a uniform magnetic ... Nm B. 3.14 Nm C. 0.314 Nm D. zero
Description : When a wire with a current is placed in a magnetic field....?
Last Answer : Feel Free to Answer
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
Description : One method of testing for a reversed shunt field coil in a DC generator or motor is by connecting the field to a direct current source, at reduced field rated voltage, and test for ... placed near each field C. test lamp across adjacent fields D. copper jumper across the interpole connections
Description : When microwave energy is passed through a piece of ferrite in a magnetic field, another effect occurs. If the frequency of the microwave energy is much greater than the electron wobble frequency, the plane of polarization of the wavefront is rotated. This is known as
Last Answer : Faraday Rotation Effect
Description : Assertion At the centre of a circular current carrying loop `(I_(1))`, there is an infinitely long straight of the circle. Then magnetic force of attr
Last Answer : Assertion At the centre of a circular current carrying loop `(I_(1))`, there is an infinitely long ... at centre is inwards, parallel to `I_(2)`.
Description : If a material, placed in a magnetic field is thrown out of it, then how is the material? -General Knowledge
Last Answer : The answer is 'Diamagnetic'
Last Answer : answer:
Description : If a material, placed in a magnetic field is thrown out of it, then how is the material?
Last Answer : Diamagnetic
Description : 1. If a material, placed in a magnetic field is thrown out of it, then how is the material? 2. Who became the first Indian to take 16 wickets in a single test match? 3. Stock Exchanges play ... to the forests been caused by acid rain? 20. By whom was Swaraj as a national demand first made?
Last Answer : Answer : 1. Diamagnetic 2. Narendra Hirwani 3. Useful but need strict regulation 4. Lake Titicaca 5. Shivaji 6. Scurvy 7. Zila Parishad 8. Carius method 9. Oregon 10. Sukerchakia 11. At Lausanne ... 15. Zamindari 16. Parliament 17. Decrease 18. Rate of indirect tax 19. Poland 20. Dadabhai Naoroji
Description : When an iron piece is placed in a magnetic field (a) the magnetic lines of force will bend away from their usual paths in order to go away from the piece (b) the magnetic lines of force will bend ... to pass through the piece (c) the magnetic field will not be affected (d) the iron piece will break
Last Answer : (b) the magnetic lines of force will bend away from their usual paths in order to pass through the piece
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)`
Description : A non - popular loop of conducting wire carrying a current `I` is placed as shown in the figure . Each of the straighrt sections of the loop is of the
Last Answer : A non - popular loop of conducting wire carrying a current `I` is placed as shown in the figure . Each of the ... `(1)/(sqrt(2))(hat(i)+hat(k))`
Description : A current `-` carrying circular loop of radius `R` is placed in the `XY-` plane with centre at the origin. Half of the loop with `xgt0` is now bent so
Last Answer : A current `-` carrying circular loop of radius `R` is placed in the `XY-` plane with centre at the origin. ... B at (0,0,z), z gt gt R is unchanged
Description : A square loop is placed near a long straight current carrying wire as shown. Match the following table.
Last Answer : A square loop is placed near a long straight current carrying wire as shown. Match the following table.
Description : In the diagram `I_(1),I_(2)` are the strength of the currents in the loop and straight conductors respectively `OA=AB=R.` the net magnetic field at th
Last Answer : In the diagram `I_(1),I_(2)` are the strength of the currents in the loop and straight conductors respectively `OA=AB= ... ` C. `1/(pi)` D. `1/(2 pi)`
Description : A circular loop of mass m and radius r in X-Y plane of a horizontal table as shown in figure. A uniform magnetic field B is applied parallel to X-axis
Last Answer : A circular loop of mass m and radius r in X-Y plane of a horizontal table as shown in figure. A uniform ... . `(mg)/(2pirB)` D. `(pirB)/(mgl)`
Description : A circular loop which is in the form of a major arc of a constant magnetic field B is applied in the vertical direction such that the magnetic lines o
Last Answer : A circular loop which is in the form of a major arc of a constant magnetic field B is applied in the ... `2 BIR sin(alpha//2)` D. None of these
Description : A wire loop is moved parallel to a uniform magnetic field. The induced emf in the loop: a. depends on the shape b. depends on area c. depends on nature of loop d. zero
Last Answer : d. zero
Description : When the electric current is passed through conducting solution, there is change in colour of the solution. This indicates a) chemical effect of current b) the heating effect of current c) the magnetic effect of current d) the lightning effect of current
Last Answer : a) chemical effect of current
Description : Pick out the correct statement. (A) If an insoluble gas is passed through a volatile liquid placed in a perfectly insulated container, the temperature of the liquid will increase (B) A ... compound is defined as the heat of reaction leading to the formation of the compound from its reactants
Last Answer : (D) The heat of formation of a compound is defined as the heat of reaction leading to the formation of the compound from its reactants
Description : Due to the flow of current in a circular loop of radius `R`, the magnetic induction produced at the centre of the loop is `B`. The magnetic moment of
Last Answer : Due to the flow of current in a circular loop of radius `R`, the magnetic induction produced at the centre of the ... )` D. `(2pi BR^(2))/(mu_(0))`
Description : An infinitely long conductor is bent into a circle as shown in figure. It carries a current I ampere and the radius of loop is R metre. The magnetic i
Last Answer : An infinitely long conductor is bent into a circle as shown in figure. It carries a current I ampere and the radius ... (0)I)/(8piR)(pi + 1)` D. zero
Description : When a certain length of wire is turned into one circular loop, the magnetic induction at the centre of coil due to some current flowing is `B_(1)` If
Last Answer : When a certain length of wire is turned into one circular loop, the magnetic induction at the centre of coil due to ... 1)` C. `3B_(1)` D. `27B_(1)`
Description : When placed in a magnetic field, which of the materials listed will maintain the highest permeability? A. Glass B. Bakelite C. Soft iron D. Aluminum
Last Answer : Answer: C
Description : Type of power-line frequency meter composed of vibrating iron reed placed in alternating magnetic field
Last Answer : Vibrating Reed Type