JEE Main 2018PhysicsMagnetic Effects of CurrentEasyMCQ

JEE Main 2018 — Magnetic Effects of Current Question with Solution

JEE Main 2018 (16 Apr Online)

Question

A charge q is spread uniformly over an insulated loop of radius r. If it is rotated with an angular velocity ω with respect to normal axis then magnetic moment of the loop is:

Choose an option

Show full solutionCorrect option: B
Correct answer
B12 qωr2

Step-by-step explanation



ML=q2m⇒M=q2m×mr2ω⇒M=qωr22.

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About this question

This is a previous-year question from JEE Main 2018, covering the Magnetic Effects of Current 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.