Question

the resistance of a wire is R the lenght of wire is doubled by streaching the new resistance will be ​

Answer 1

Answer:

Resistance also becomes doubled.

If the resistance was RΩ then now, it will become 2RΩ .

Explanation:

W.K.T, R = ρl/A

          R  ∝ l

      So, when l increases, even R increases.

So, when l becomes 2l, R becomes 2R.