Resistance of a conductor of diameter and length L is R ohm. It the diameter of the conductor is halved and its length is doubled the resistance will be-

Resistance of a conductor of diameter and length L is R ohm. It the diameter of the conductor is halved and its length is doubled the resistance will be-

A R ohm

B 2R ohm

C 4R ohm

D 8R ohm

Solution

Correct Answer: Option D