JEE Main 2018 — Electromagnetic Induction Question with Solution
JEE Main 2018 (15 Apr Shift 2 Online)
Question
At the centre of a fixed large circular coil of radius , a much smaller circular coil of radius is placed. The two coils are concentric and are in the same plane. The larger coil carries a current I. The smaller coil is set to rotate with a constant angular velocity about an axis along their common diameter. Calculate the emf induced in the smaller coil after a time of its start of rotation.
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
According to Faraday's law of electromagnetic induction,
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This is a previous-year question from JEE Main 2018, 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.