Published by:
CGP EDU Academic Team
Published on: August 22, 2026
In the circuit shown, a four-wire potentiometer is made of a 
long wire, which extends between 
and 
. The resistance per unit length of the potentiometer wire is 
. If an ideal voltmeter is connected as shown with jockey 
at 
from end 
, the expected reading of the voltmeter will be:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Resistance of wire 
Now voltmeter reading 
(Resistance of 
length)
volt
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