Physics, asked by hasmatarakhatun786, 8 months ago

A given length of a wire is doubled on itself.By what factor does the resistance of the wire changes?

Answers

Answered by prakhargupta3301

1

Answer:

Explanation:

R=ρl/A

When you double a wire, length halves, and area doubles.

l=l/2

A=2A

New resistance:

R=ρl/2*A*2

=ρl/4A

So Resistance decreases by a factor of 4

Answered by wwwseenalingampalli

0

Explanation:

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