Question

A potential difference v is applied across a conductor of length l and diameter d

Answer 1

If the potential difference of V is provided across a conductor of length L and area of cross-section A .Will the resistance R of a conductor be affected when V is halved, L is halved or A is halv

If the potential difference of V is provided across a conductor of length L and area of cross-section A .Will the resistance R of a conductor be affected when V is halved, L is halved or A is halved ? justify your answer in each case