JEE Main 2021 — Current Electricity Question with Solution
From: JEE Main 2021 (Online) 20th July Evening Shift
Question
In the given figure switches S1 and S2 are in open condition. The resistance across ab when the switches S1 and S2 are closed is _____________ .
This question includes a diagram. The text above accompanies the figure.
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Show full solutionCorrect answer: 10
Correct answer
10
Step-by-step explanation
When switch S1 and S2 are closed
Rab =
=
Rab =
=
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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.