Q. 15: A potentiometer wire has length 2 m, and resistance 10 2. It is connected in series with a resistance 990 N and a cell and emf 2V. The potential gradient along the wire is
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![Q. 15: A potentiometer wire has length 2 m,
and resistance 10 2. It is connected in series
with a resistance 990 Q and a cell and emf 2V.
The potential gradient along the wire is :
(a)
0.01 V / m
(b) 0.02 V/m
(c)
0.025 V/m
(d) 0.03 V/m](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F20738590-d101-4623-8126-0534c824d9ac%2F534b15e5-3a08-4211-bfd0-beee63593d16%2F9fd7j2_processed.jpeg&w=3840&q=75)
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