JEE Main 2026 — Electromagnetic Induction Question with Solution
JEE Main 2026 (23 January Shift 1)
Question
A simple pendulum made of mass 10 g and a metallic wire of length 10 cm is suspended vertically in a uniform magnetic field of 2 T. The magnetic field direction is perpendicular to the plane of oscillations of the pendulum. If the pendulum is released from an angle of with vertical, then maximum induced EMF between the point of suspension and point of oscillation is mV. (Take )
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Show full solutionCorrect answer: 100
Correct answer
100
Step-by-step explanation
The maximum induced EMF for a rod of length rotating in a magnetic field is:
Using energy conservation to find :
From equation (1):
Using energy conservation to find :
From equation (1):
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This is a previous-year question from JEE Main 2026, covering the Electromagnetic Induction chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.