JEE Advanced 2025 Paper 1 Physics Q5

Physics · Electromagnetic Induction · Laws of Motion

Problem

A conducting square loop of side L, mass M and resistance R is moving in the XY plane with its edges parallel to the X and Y axes. The region y ≥ 0 has a uniform magnetic field, B⃗\vec{B} = B₀k^\hat{k}. The magnetic field is zero everywhere else. At time t = 0, the loop starts to enter the magnetic field with an initial velocity v₀ĵ m/s, as shown in the figure. Considering the quantity K = B₀²L²/(RM) in appropriate units, ignoring self-inductance of the loop and gravity, which of the following statements is/are correct:

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