JEE Main 2021 — Alternating Current Question with Solution
From: JEE Main 2021 (Online) 26th February Morning Shift
Question
An alternating current is given by the equation i = i1 sin t + i2 cos t. The rms current will be :
Choose an option
Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
We know that,
So,
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This is a previous-year question from JEE Main 2021, 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.