A wire of given material having length l and area of cross section A has a resistance of 4 ohm. What would be the resistance of another wire of the same material having length l/2 and area of cross section 2A.
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resistenece is directly proportional to length of conductor and inversely proportional to the area of cross section .
so the resistance of another wire would be l/2
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Answer:
4 times of earlier wire...
hope it helps you...
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