JEE Main 2021 — Current Electricity Question with Solution
From: JEE Main 2021 (Online) 25th July Evening Shift
Question
The given potentiometer has its wire of resistance 10. When the sliding contact is in the middle of the potentiometer wire, the potential drop across 2 resistor is :


This question includes a diagram. The text above accompanies the figure.
Choose an option
Show full solutionCorrect option: C
Correct answer
C V
Step-by-step explanation

Volt
Potential difference across 2 resistor is 20 V0
That is Volt
Hence answer is Volt
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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.