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A piece of wire of resistance,R is cut into five equal parts. These parts are then connected in parallel.

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asked Jan 22, 2018 in Physics by Kundan kumar (49,132 points) ● 34 ● 378 ● 1010

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 find the ratio R/R'.

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answered Jan 22, 2018 by Vikash Kumar (144,729 points) ● 8 ● 11 ● 21
selected Jan 23, 2018 by Kundan kumar
 
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Resistance of a piece of length l/5=R/5

The equivalent resistance of the 5 wires in parallel is R.'Then

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