JEE Main 2020 — Current Electricity Question with Solution
From: JEE Main 2020 (Online) 8th January Morning Slot
Question
Four resistances of 15, 12, 4 and 10
respectively in cyclic order to form
Wheatstone's network. The resistance that
is to be connected in parallel with the
resistance of 10 to balance the network is
_____.
Enter your answer
Show full solutionCorrect answer: 10
Correct answer
10
Step-by-step explanation
Wheatstone bridge balance condition
2R = 10 + R
R = 10
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This is a previous-year question from JEE Main 2020, 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.