Physics, asked by abhisheku2375, 10 months ago

A wire had a resistance of 20 ohm. It was then melted and reduced to one fifth of it's original length and it's cross section area was doubled. Find its new resistance

Answers

Answered by sashikantchoubey
1

Answer:

R directly proportional to length and inversely proportional to area . so answer will be 2 ohm.

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