JEE Main 2026 — Electromagnetic Induction Question with Solution
JEE Main 2026 (23 January Shift 1)
Question
A 20 m long uniform copper wire held horizontally is allowed to fall under the gravity () through a uniform horizontal magnetic field of 0.5 Gauss perpendicular to the length of the wire. The induced EMF across the wire when it travells a vertical distance of 200 m is mV.
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Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
For a conducting wire falling in a magnetic field, induced EMF is:
After falling through height m, velocity: m/s
Converting magnetic field: Gauss T
Induced EMF: V mV
After falling through height m, velocity: m/s
Converting magnetic field: Gauss T
Induced EMF: V mV
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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.