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MHT CET 2020 16th October Morning Shift
MCQ (Single Correct Answer)
+1
-0

A potentiometer wire is $$4 \mathrm{~m}$$ long and potential difference of $$3 \mathrm{~V}$$ is maintained between the ends. The emf of the cell, which balances against a length of $$100 \mathrm{~cm}$$ of the potentiometer wire is

A
0.60 V
B
0.50 V
C
0.25 V
D
0.75 V
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