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A potentiometer wire AB as shown in 40 c...


A potentiometer wire AB as shown in 40 cm long of resistance `50Omega//m` free end of an ideal galvanometer is touching the potentiometer wire with the help of a jockey. What should be the velocity of the jockey as a function of time so that potential difference across the galvanometer is varying with time as `(2sinpit)V`

A

`10 pi sin pi t cm//s`

B

`10 pi cos pi t cm//s`

C

`20 pi sin pi t cm//s`

D

`20 pi cos pi t cm//s`

Text Solution

Verified by Experts

The correct Answer is:
D
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