If a wire is stretched to make it 0.1 % longer its resistance will :-

Question:

If a wire is stretched to make it $0.1 \%$ longer its resistance will :-

  1. decrease by $0.2 \%$

  2.  decrease by $0.05 \%$

  3. increase by $0.05 \%$

  4.  increase by $0.2 \%$

Correct Option: , 4

Solution:

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