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The potential gradient along the length ...

The potential gradient along the length of a uniform wire is 5 V/m. There are two points on the same wire at a distance of 20 cm and 40 cm from initial end of the wire. The potential difference between these points is

A

1V

B

2V

C

3V

D

4V

Text Solution

Verified by Experts

The correct Answer is:
A
`V_(1)-V_(1)=Irho(l_(2)-l_(1))`
`=5(40-20)xx10^(-2)`
`=5xx20xx10^(-2)`
`=1V`
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