question_answer

A certain piece of silver of given mass is to be made like a wire. Which of the following combination of length (L) and the area of cross-sectional  will lead to the smallest resistance    [MP PMT 1995; CBSE PMT 1997]

A)                    L and A

B)            2L and A/2

C)            L/2 and 2 A

D)            Any of the above, because volume of silver remains same