Q. The steady current flows in a metallic conductor of non-uniform cross-section. The quantity/quantities constant along the length of the conductor is/are
A) Current, electric field and drift velocity
B) Drift speed only
C) Current and drift speed
D) Current only
Explanation
(d) Only current through the conductor of non-uniform area of cross-section is constant. Drift velocity or drift speed vary inversely with the area of cross-section of the conductor
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.