PHYSICS · Single correct · CBSE · Physics · Current Electricity · Current Electricity
Problem
A metallic wire carries a steady current I. If its cross-sectional area is doubled without changing the current, how will the drift velocity of electrons in the wire be affected?
(a) It remains unchanged
(b) It becomes half of its original value
(c) It becomes double of its original value
(d) It becomes one-fourth of its original value