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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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by (98.9k points) in Electricity 669 views
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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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Correct option is d) 25

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