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A wire has resistance 12 Omega. It is be...

A wire has resistance `12 Omega`. It is bent in the form of a circle. The effective resistance between two points across a diameter is.

A

`2Omega`

B

`6Omega`

C

`3Omega`

D

`24Omega`

Text Solution

Verified by Experts

The correct Answer is:
C
`R_"eq"=` two segments of `6Omega` in parallel

Now, `1/R_"eq"=1/6+1/6=2/6=1/3`
`R_"eq"=3Omega`
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