Description : Two long conductors, separated by a distance `d` carry current `I_(1) and I_(2)` in the same direction . They exert a force `F` on each other. Now the
Last Answer : Two long conductors, separated by a distance `d` carry current `I_(1) and I_(2)` in the same direction . They exert a ... C. `(2F)/(3)` D. `(-2F)/(3)`
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.
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)
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
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`
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
Description : Two long parallel conductors carry 100 A. If the conductors are separated by 20 mm, the force per meter of length of each conductor will be
Last Answer : Two long parallel conductors carry 100 A. If the conductors are separated by 20 mm, the force per meter of length of each conductor will be 0.1 N.
Description : Two parallel conductors `A` and `B` of equal lengths carry currents `I` and `10 I`, respectively, in the same direction. Then
Last Answer : Two parallel conductors `A` and `B` of equal lengths carry currents `I` and `10 I`, ... A and B will attract each other with different forces
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 : he work done of vectors force F and distance d, separated by angle θ can be calculated using, a) Cross product b) Dot product c) Addition of two vectors d) Cannot be calculated
Last Answer : b) Dot product
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
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 : When currents are moving in the same direction in two conductors, then the force will be a) Attractive b) Repulsive c) Retracting\ d) Opposing
Last Answer : a) Attractive
Description : In a second class lever why must you exert input force over a greater distance?
Last Answer : If the input force is applied at a greater distance than thelength of the effort arm is increased thereby reducing theeffort.
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
Description : Two identical conducting wires `AOB and COD` are placed at right angles to each other. The wire `AOB` carries an electric current `I_(1) and COD` carr
Last Answer : Two identical conducting wires `AOB and COD` are placed at right angles to each other. The wire `AOB` carries an electric ... )^(2)+I_(2)^(2))^(1//2)`
Description : F = BIL can only be used if the magnetic field and electric current are A. at right angles to each other B. in same direction C. anti-parallel to each other D. anti-perpendicular to each other
Last Answer : at right angles to each other
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 : 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
Last 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`
Description : Find the force between 2C and -1C separated by a distance 1m in air(in newton). a) 18 X 10 6 b) -18 X 10 6 c) 18 X 10 -6 d) -18 X 10 -6
Last Answer : b) -18 X 10 6
Description : Two bodies kept at a certain distance feel a gravitational force F to each other. If the distance between them is made double the former distance, the force will be - (1) 2F (2) F/2 (3) 4F (4) F/4
Last Answer : (4) F/4
Description : Two bodies kept at a certain distance feel a gravitational force F to each other. If the distance between them is made double the former distance, the force will be
Last Answer : 1F/4
Description : Liquid A and liquid B exert same amount of pressure on each other, but the density of A is twice the density of B. The height of liquid B is 10 cm, then the height of liquid A would be A. 5 cm B. 10 cm C. 20 cm D. 40 cm
Last Answer : 5 cm
Description : The left hand rule correlates to (a) current, induced e.m.f. and direction of force on a conductor (b) magnetic field, electric field and direction of force on a conductor (c) self induction, ... and direction of force on a conductor (d) current, magnetic field and direction of force on a conductor
Last Answer : (d) current, magnetic field and direction of force on a conductor
Description : Find the angle at which the potential due a dipole is measured, when the distance from one charge is 12cm and that due to other is 11cm, separated to each other by a distance of 2cm. a) 15 b) 30 c) 45 d) 60
Last Answer : d) 60
Description : Two coils have a mutual inductance 0.005H. The current changes in the first coil according to the equation `I=I_(0) sin omegat "where" I_(0)=10A and o
Last Answer : Two coils have a mutual inductance 0.005H. The current changes in the first coil according to the equation `I ... (pi//x)` volts. Find the value of x.
Description : The current through a wire depends on time as `I=I_(0)+alpha t`, where `I_(0)=10` A and `alpha=4 As^(-1)`. Find the charge that flows across a section
Last Answer : The current through a wire depends on time as `I=I_(0)+alpha t`, where `I_(0)=10` A and ... that flows across a section of the wire in 10 seconds.
Description : A cell supplies a current `i_(1)` trhough a resistnace `R_(1)` and a current `i_(2)` through a resistance `R_(2)`. The internal resistance of this cel
Last Answer : A cell supplies a current `i_(1)` trhough a resistnace `R_(1)` and a current `i_(2)` through a resistance `R_(2 ... ))/(i_(1)-i_(2)))sqrt(R_(1)R_(2))`
Description : Curves in the same direction separated by short tangents, are called (A) Simple circular curves (B) Compound curves (C) Transition curves (D) Broken-back curves
Last Answer : Answer: Option D
Description : For a reaction `H_(2(g))+I_(2(g))rArr2HI_((g))at 721^(@)C` the value of equilibrium constant is 50 . If 0.5 moles each of `H_(2)` & `I(2)` is added to
Last Answer : For a reaction `H_(2(g))+I_(2(g))rArr2HI_((g))at 721^(@)C` the value of equilibrium constant is 50 . ... constant will be . A. 100 B. 25 C. 50 D. 200
Description : What if your ability of a muscle to exert submaximal Force repeatedly over a period of time?
Last Answer : What is the answer ?
Description : If a bat hits a ball with a 1000 N force what force does the ball exert on the bat?
Description : If the gravity exerts 15 N and there is 10 N of friction how much force will Jim need to exert to move it?
Last Answer : Need answer
Description : Do Objects of any size exert a gravitational force.?
Last Answer : If the object having some mass then for sure it exert agravitational force.The more the mass the more will be gravity.
Description : How much force (in Newtons) does a baseball pitcher have to exert on a 250g baseball to make it accelerate to 50 ms the instant that it leaves his hand?
Last Answer : ?
Description : Does Earth exert a contact or a non-contact force on the moon?
Last Answer : Earth exerts a non-contact force on the moon.
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`
Description : Two galvanometers A and B require 3 mA and 5 mA respectively to produce the same deflection of `i_(0)` division. Then
Last Answer : Two galvanometers A and B require 3 mA and 5 mA respectively to produce the same deflection of `i_(0) ... sensitiveness of B is 5/3 times of that of A
Description : If `0.5 `mole `H_(2)` is reacted with 0.5 mole `I_(2)` in a ten `-` litre container at `444^(@)C` and at same temperature value of equilibrium constan
Last Answer : If `0.5 `mole `H_(2)` is reacted with 0.5 mole `I_(2)` in a ten `-` litre container at `444^(@)C` and at ... B. `(1)/(7)` C. `sqrt((1)/(7))` D. 49
Description : Which of the following xenon compound has the same number of lone pairs as in `I_(3)^(-)`? (near central atom)
Last Answer : Which of the following xenon compound has the same number of lone pairs as in `I_(3)^(-)`? (near central atom) ... XeO_(3)` C. `XeF_(4)` D. `XeO_(4)`
Description : Which of the following quantity maintains the same direction whether a D.C. machine runs as a generator or as a motor a. Induced e.m.f. b. Armature Current c. Field Current d. Supply Current
Last Answer : Which of the following quantity maintains the same direction whether a D.C. machine runs as a generator or as a motor a. Induced e.m.f. b. Armature Current c. Field Current d. Supply Current
Description : Study of drug-receptor interaction has now shown that: A. Maximal response occurs only when all receptors are occupied by the drug B. Drugs exert an all or none' action on a ... lock and key' structural features D. Properties of affinity' and intrinsic activity' are independently variable
Last Answer : D. Properties of ‘affinity’ and ‘intrinsic activity’ are independently variable
Last Answer : The force between two long parallel conductors is inversely proportional to distance between the conductors.
Description : According to Newton's 2nd law the object's acceleration and centripetal force are A. at right angles to each other B. anti parallel to each other C. make acute angle with each other D. in same direction
Last Answer : in same direction
Description : The induced e.m.f. in the armature conductors of a d.c. motor is?
Last Answer : The induced e.m.f. in the armature conductors of a d.c. motor is sinusoidal.
Last Answer : In any rotating machine that part which houses the conductors and in which e.m.f. induced is to be utilised is called armature.
Description : The pressure that each individual gas would exert if it were alone in the container, what do we call it as ?
Last Answer : The pressure that each individual gas would exert if it were alone in the container, what do we call it as ?
Description : The work done by a body on application of a constant force is the product of the constant force and distance travelled by the body in the direction of force. Express this in the form of a linear equation in two variables and draw its graph by taking the constant force as 3 units. -Maths 9th
Last Answer : Solution :-
Description : A force of 10 N displaces a body by a distance of 3 m at an angle 60° to its own direction. Find the amount of work done. -Physics 9th
Last Answer : F=10N,S=2m,θ=600 So, Work=F×Scosθ=10×2cos600 =10×2×21=10J