JEE Main 2021 — Current Electricity Question with Solution
From: JEE Main 2021 (Online) 27th August Morning Shift
Question
Five identical cells each of internal resistance 1 and emf 5V are connected in series and in parallel with an external resistance 'R'. For what value of 'R', current in series and parallel combination will remain the same?
Choose an option
Show full solutionCorrect option: A
Correct answer
A1
Step-by-step explanation
4R = R
R = 1
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This is a previous-year question from JEE Main 2021, covering the Current Electricity 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.