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A piece of wire of resistance 4 ohm s i...

A piece of wire of resistance 4 ohm s is bent through `180^(@)` at its mid point and the two halves are twisted together, then the resistance is

A

`8 ohm`

B

`1 ohm`

C

`2 ohm`

D

`5 ohm`

Text Solution

Verified by Experts

The correct Answer is:
B
`R^(1)=((R_1)R_(2))/(R_(1) + R_(2))`
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