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A piece of wire of resistance R is cut i...

A piece of wire of resistance R is cut into five equal parts. These parts are then connected in parallel. If the equivalent resistance of this combination is R ′ , then the ratio R/R ′ is –

A

`1//25`

B

`1//5`

C

`5`

D

`25`

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Knowledge Check

  • A uniform wire of resistance 50Omega is cut into five equal parts. These parts are now connected in parallel in parallel. Then equivalent resistance of the combination is

    A
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    D
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