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Question 1 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 RR′ is – (a) 125 (b) 15 (c) 5 (d) 25

Answer» Question 1
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 RR is –

(a) 125
(b) 15
(c) 5
(d) 25


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