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A galvanometer having a coil resistance ...

A galvanometer having a coil resistance of `60 Omega` shows full scale defection when a current of `1.0 A` passes thoguth it. It can vbe convered into an ammeter to read currents up to `5.0 A` by

A

`240Omega`in parallel

B

`15Omega`in series

C

`240Omega`in series

D

`15Omega`in parallel

Text Solution

Verified by Experts

The correct Answer is:
D
`S=(I_g.G)/(I-I_g)`
`=(1xx60)/(5-1)=(60)/(4)`
` =15 Omega` in parallel.
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