JEE Main 2025 — Electromagnetic Induction Question with Solution
JEE Main 2025 (29 Jan Shift 1)
Question
A coil of area A and N turns is rotating with angular velocity in a uniform magnetic field about an axis perpendicular to . Magnetic flux and induced across it, at an instant when is parallel to the plane of coil, are :
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
$\begin{aligned} \phi & =\mathrm{BAN} \cdot \cos (\omega \mathrm{t}) \\ \varepsilon & =\frac{-\mathrm{d} \phi}{\mathrm{dt}}=\mathrm{BA} \omega \mathrm{~N} \cdot \sin (\omega \mathrm{t}) \end{aligned}$ When is parallel to plane,
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This is a previous-year question from JEE Main 2025, 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.