1.

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

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.



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