JEE Main 2020PhysicsAlternating CurrentEasyNumerical

JEE Main 2020 — Alternating Current Question with Solution

JEE Main 2020 (06 Sep Shift 1)

Question

A part of a complete circuit is shown in the figure. At some instant, the value of current I is 1A and it is decreasing at a rate of 102As-1. The value of the potential difference Vp-VQ, (in volts) at that instant is-

  

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Show full solutionCorrect answer: 33
Correct answer
33

Step-by-step explanation

Vp-Ldldt-30+RI=VQ

VP-Va=+50×10-3×102+30-1×2

= + 5 + 30 – 2 = 33

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About this question

This is a previous-year question from JEE Main 2020, covering the Alternating 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.