If the potential difference V applied across a conductor is increased to 2V with its temperature kept constant, free electrons in a conductor will

Q. If the potential difference V applied across a conductor is increased to 2V with its temperature kept constant, free electrons in a conductor will –
(i) remain the same
(ii) become half of its previous value
(iii) be double of its initial value
(iv) become zero.

Answer: (iii) be double of its initial value

If temperature is kept constant, relaxation time t – will remain constant, and e, m are also constants.

V_d α V
V_d α 2V
Correct option is (iii)