Q. The length of a conductor is doubled and its radius is halved, its specific resistance is
A) Unchanged
B) Halved
C) Doubled
D) Quadrupled
Explanation
(a) Specific resistance is independent of dimensions of conductor but depends on nature of conductor.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.