Question

If a wire is stretched to make it 0.1 % longer, then its resistance will
(A) increase by 0.2%
(B) decrease by 0.2%
(C) decrease by 0.05%
(D) increase by 0.05%​

Answer 1

Answer:

(A) increase by 0.2%

Explanation:

the length of the wire is directly proportional to the the resistance.

so as the the length increases resistance increases