JEE Main 2022 — Electromagnetic Induction Question with Solution
JEE Main 2022 (28 Jun Shift 2)
Question
A coil is placed in a time varying magnetic field. If the number of turns in the coil were to be halved and the radius of wire doubled, the electrical power dissipated due to the current induced in the coil would be (Assume the coil to be short circuited.)
Choose an option
Show full solutionCorrect option: B
Correct answer
BThe same
Step-by-step explanation
where, inducedemf
also,
where, resistance and radius of wire
This means if the number of turns were quadrupled and the wire radius halved, the electrical power dissipated would be remains same.
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This is a previous-year question from JEE Main 2022, 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.