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JEE Main 2016 — Magnetic Effects of Current Question with Solution

JEE Main 2016 (10 Apr Online)

Question

Consider a thin metallic sheet perpendicular to the plane of the paper moving with speed v in a uniform magnetic field B going into the plane of the paper (see figure). If charge densities σ1 and σ2 are induced on the left and right surfaces respectively of the sheet, then (ignore fringe effects)

Choose an option

Show full solutionCorrect option: B
Correct answer
Bσ1=ϵ0vB, σ2=-ϵ0vB

Step-by-step explanation

σ1=-σ2 [due to magnetic force]

E=σε0=vB

σ=ε0vB

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About this question

This is a previous-year question from JEE Main 2016, 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.