JEE Main 2020 — Magnetic Effects of Current Question with Solution
JEE Main 2020 (09 Jan Shift 1)
Question
A long, straight Wire of radius a carries a current distributed uniformly over its cross-section. The ratio of the magnetic fields due to the wire at distance and , respectively from the axis of the wire is:
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Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
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This is a previous-year question from JEE Main 2020, 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.