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
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