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  • The resistance of a wire is  . It's new resistance in ohm if stretched to <img alt="5" src="https://ent

The resistance of a wire is 5\Omega . It's new resistance in ohm if stretched to 5 times of it's original length
will be :

Option: 1

25


Option: 2

125


Option: 3

5


Option: 4

625


Answers (1)

best_answer

\begin{aligned} R_{\text {new }} & =n^2 R \\ & =(5)^2 \times 5 \\ & =125 \end{aligned}

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