Question

Pick the correct sentence,
(A) Resistance depends upon resistivity
(B) If resistance change resistivity changes
(C) If length of a conductor is changes, resistance is not affected
D) None of these​

Answer 1

I think c. if length of a conductor is changes resistance is not affected

Answer 2

Answer:

(B) If resistance change resistivity changes.

Explanation:

R = ( rho x l ) / a

R is directly proportional to rho.

So, If resistance change resistivity changes.