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A wire of resistance 2 ohms per meter is...

A wire of resistance 2 ohms per meter is bent to form a circle of radius 1 m. The equivalent resistance between its two diameterically opposite points, A and B as shown in the figure is …..

A

`pi Omega`

B

`pi/2 Omega`

C

`2 pi Omega`

D

`pi/4 Omega`

Text Solution

Verified by Experts

The correct Answer is:
B
`R_1 = pi, R_2 = pi`
`1/ R_p = 1/pi + 1/pi = 2/pi`
`:." "R_p = pi/2 Omega`
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