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A wire of resistance 12 Omega m^(-1) is ...

A wire of resistance `12 Omega m^(-1)` is bent to from a complete circle of radius `10 cm`. The resistance between its two diametrically opposite points, `A` and `B` as shown in the figure, is

A

`6Omega`

B

`0.6piOmega`

C

`3Omega`

D

`6piOmega`

Text Solution

Verified by Experts

The correct Answer is:
2
`R_(AB)=(R)/(2)=((1)/(2))(pirp)`
`=((1)/(2))(pixx10xx10^(-2)xx12)=0.6piOmega`
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