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The current flowing in a coil of resista...

The current flowing in a coil of resistance `90 Omega` is to be reduced by 90%. What value of resistance should be connected in parallel with it

A

`9 Omega`

B

`90 Omega`

C

`1000 Omega`

D

`10 Omega`

Text Solution

Verified by Experts

The correct Answer is:
D
`i_(g) =i/10`
`S = (0.1 i)/(i-0.1 i) xx 90 = 10 Omega`
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