Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACMotional & Rotational EMFHard2 minPDF
PhysicsHardmultiple choice

A conducting square loop of side , mass and resistance is moving in the plane with its edges parallel to the and axes. The region has a uniform magnetic field, . The magnetic field is zero everywhere else. At time , the loop starts to enter the magnetic field with an initial velocity , as shown in the figure. Considering the quantity in appropriate units, ignoring self-inductance of the loop and gravity, which of the following statements is/are correct?

Options:(select one or more)

Answer:
A, B
Solution:

 

 

 

For 0.75KL, the loop stops before full entry, so A is correct.

Once fully inside uniform field, net magnetic force is zero, so B is correct.

Options C and D give incorrect stopping/time claims.

Stream:JEESubject:PhysicsTopic:EMI/ACSubtopic:Motional & Rotational EMF
⏱ 2mℹ️ Source: PDF

Doubts & Discussion

Loading discussions...