Home
Class 12
PHYSICS
Figure shows a conducting rod of negligi...

Figure shows a conducting rod of negligible resistance that can slide on smooth U-shaped rail made of wire of resistance `1Omega//m`. Position of the conducting rod at `t=0` is shown. A time dependent magnetic field `B=2t` tesla is switched on at `t=0`

At `t=0`, when the magnetic field is switched on, the conducting rod is moved to the left at constant speed `5cm//s` by some external means. At `t=2s`, net induced emf has magnitude

A

`0.12 V`

B

`0.08 V`

C

`0.04 V`

D

`0.02 V`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    RESONANCE ENGLISH|Exercise Exercis-3 PART 1|18 Videos

  • ELECTROMAGNETIC INDUCTION

    RESONANCE ENGLISH|Exercise Exercis-3 PART 2|16 Videos

  • ELECTROMAGNETIC INDUCTION

    RESONANCE ENGLISH|Exercise Exercis-2 PART 3|10 Videos

  • ELECTRODYNAMICS

    RESONANCE ENGLISH|Exercise Advanced level problems|31 Videos

  • ELECTROSTATICS

    RESONANCE ENGLISH|Exercise HLP|40 Videos

Similar Questions

Explore conceptually related problems

Figure shows a conducting rod of negligible resistance that can slide on smooth U-shaped rail made of wire of resistance 1Omega//m . Position of the conducting rod at t=0 is shown. A time dependent magnetic field B=2t tesla is switched on at t=0 The current in the loop at t=0 due to induced emf is

Figure shows a conducting rod of negligible resistance that can slide on smooth U-shaped rail made of wire of resistance 1Omega//m . Position of the conducting rod at t=0 is shown. A time dependent magnetic field B=2t tesla is switched on at t=0 The magnitude of the force required to move the conducting rod at constant speed 5cm/s at the same instant t=2s , is equal to

A conducting circular loop of radius a and resistance R is kept on a horizontal plane. A vertical time varying magnetic field B=2t is switched on at time t=0. Then

A uniform magnetic field B=B_(0)t (where B_(0) is a positive constant) fills a cylindrical volume of radius R then the potential difference in the conducting rod PQ due to electrostatic field is :

A conducting rod of length l is moving in a transverse magnetic field of strength B with veocity v. The resistance of the rod is R. The current in the rod is

A square wire of resistance 1.3Omega and side 1cm is moving in uniform magnetic field B=1T with speed 1cm//sec as shown in figure then the current in loop is :

A small conducting rod of length l, moves with a uniform velocity v in a uniform magnetic field B as shown in fig __

Figure shows a conducting Rectangular loop of electrical resistance R. There exists a uniform magnetic field given by vecB=B_(0)(10t^(2)-5t)hat(k) in the region. The current in the loop at

A conducting circular loop made of a thin wire, has area 3.5xx10^(-3)m^(2) and resistance 10Omega. It is placed perpendicular to a time dependent magnetic field B(t)=(0.4T)sin(50pit) . The field is uniform in space. Then the net charge flowing through the loop during t=0 s and t=10 ms is close to :

A sliding rod AB of resistance R is shown in the figure. Here magnetic field B is constant and is out of the paper. Parallel wires have no resistance and the rod is moving with constant velocity v. The current in the sliding rod AB when switch S is closed at time t=0 is