The potential difference V applied across a conductor is increased to 2 V with its temperature kept constant, the drift velocity of the free electrons in a conductor will
The drift velocity (vd) of free electrons in a conductor is directly proportional to the applied potential difference (V), given by vd ∝ V. When V is doubled, vd also doubles. Hence, the correct answer is (c) be doubled of its initial value.
Class 12th Science Physics NCERT MCQ Questions
NCERT Books MCQ Questions Session 2024-2025.
Share
The drift velocity vₐ of free electrons in a conductor is given by vₐ = (eEτ) / m, where
E = V/L. When V is doubled, E doubles, so vₐ also doubles.
Thus, the correct answer is (c) be doubled of its initial value.
For more visit here:
https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-3/