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A 2 volt battery, a 15 Omega resistor an...

A 2 volt battery, a `15 Omega` resistor and a potentiometer of `100 cm` length, all are connected in series. If the resistance resistance of potentiometer wire is `5 Omega`, then the potential gradient of the potentiometer wire is

A

0.005 V//cm

B

0.05 V//cm

C

0.02 V//cm

D

0.2 V//cm

Text Solution

Verified by Experts

The correct Answer is:
A
`((2)/(15 + 5)) xx (5)/(100) = 0.005 V//cm`.
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