Home
Class 12
PHYSICS
A square metallic wire loop of side "0.1...

A square metallic wire loop of side `"0.1 m"` and resistance of `1Omega` is moved with a constant velocity in a magnetic field of `2wb//m^(2)` as shown in figure. The magnetic field field is perpendicular to the plane of the loop, loop is coonected to a network of resistances. what should be the velocity of loop so as to have a steady current of `1mA` in loop?

A

(a) `2ms^(-1)`

B

(b) `2cms^(-1)`

C

( c) `10ms^(-1)`

D

(d) `20ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
Effective resistance is `4 Omega`.
`I = (E)/(R ) = (Blv)/(R ) or v = (IR)/(Bl)`
or `v = (1 xx 10^(-3) xx 4)/(2 xx 10 xx 10^(-2))ms^(-1)`
`= 0.02 ms^(-1) = 2cm s^(-1)`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    CENGAGE PHYSICS ENGLISH|Exercise Archives Multiple Correct|3 Videos

  • ELECTROMAGNETIC INDUCTION

    CENGAGE PHYSICS ENGLISH|Exercise Archives Asserton - Reasoning|1 Videos

  • ELECTROMAGNETIC INDUCTION

    CENGAGE PHYSICS ENGLISH|Exercise Archives Fill In The Blanks|3 Videos

  • ELECTRICAL MEASURING INSTRUMENTS

    CENGAGE PHYSICS ENGLISH|Exercise M.C.Q|2 Videos

  • ELECTRON,PHONTS,PHOTOELECTRIC EFFECT & X-RAYS

    CENGAGE PHYSICS ENGLISH|Exercise dpp 3.3|15 Videos

Similar Questions

Explore conceptually related problems

A square metal wire loop of side 20 cm and resistance 2Omega is moved with a constant velcoity v_(0) in a uniform magnetic field of induction B = 1 Wb//m^(2) as shown in the figure. The magnetic field lines are perpendicular to the plane of the loop. The loop is connected to a network of resistance each of value 5Omega . The resistances of the lead wires BF and AE are negligible. What should be the speed of the loop, so as to have a steady current of 2 mA in the loop? Give the direction of current in the loop.

A square loop of side 10 cm and resistance 1 Omega is moved towards right with a constant velocity V_0 as shown in . The left arm of the loop is in a uniform magnetic field of 2 T. the field is perpendicular ot the plane of the drawing and is going into it. the loop is connected to a network of resistors each of value 3 Omega with what speed should the loop be moved so that a steady curfrent of 1 mA flows in the loop.

A circular loop of wire is carring a current i (as shown in the figure). On applying a uniform magnetic field inward perpendicular to the plane of the loop, the loop

The magnetic field perpendicular to the plane of a loop of area 0.1m^(2) is 0.2 T. Calculate the magnetic flux through the loop (in weber)

A square loop of side a carris a current I . The magnetic field at the centre of the loop is

A loop PQR carries a current i = 2A as shown in the figure. A uniform magnetic field B = 2T exists in space parallel to the plane of the loop . The magnetic torque on the loop is

A metallic square loop ABCD is moving in its own plane with velocity v in a uniform magnetic field perpendicular to its plane as shown in the figure. An electric field is induced

A metallic square loop ABCD is moving in its own plane with velocity v in a uniform magnetic field perpendicular to its plane as shown in the figure. An electric field is induced

A conducting square loop of side l and resistance R moves in its plane with a uniform velocity v perpendicular ot one of its sides. A uniform and constant magnetic field B exists along the perpendicualr ot the plane of the loop as shown in . The current induced in the loop is

A metalic square loop ABCD is moving in its own plane with velocity v is in a uniform magnetic field perpendicular to its plane as shown in the figure . An electric field is induced