A wire that has a resistance 5 ohms is stretched out uniformly so that its length triples. What is its new resistance
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1
Answer:
the resistance=5×3=15 ohm
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0
Explanation:
Since the resistance of a wire is given by R = rho*l/A the length while cutting the cross-section by 3x, the new resistance will be 9 times the original resistance.
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