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A 2 V battery, a 990Omega resistor and a...

A 2 V battery, a `990Omega` resistor and a potentiometer of 2 m length, all are connected in series of the resistance of potentiometer wire is `10Omega`, then the potential gradient of the potentiometer wire is

A

`0.05Vm^-1`

B

`0.5Vm^-1`

C

`0.01Vm^-1`

D

`0.1Vm^-1`

Text Solution

Verified by Experts

Use potential gradient `n=e/((R+R+r)) R/L`
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