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A current is passed through two coils c...

A current is passed through two coils connected in series. The potential difference across the first coil is 3V and that of the second coil 4.5V. If the first coil has resistance of `2Omega` , the resistance of the second coil is

A

`3Omega`

B

`5Omega`

C

`7Omega`

D

`9Omega`

Text Solution

Verified by Experts

The correct Answer is:
B
`S= (i_gG)/(i-i_g)`
`(2xx180)/(20-2)`
`20Omega`
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