Question

5. With the increase in the voltage across the terminals of a conductor, the drift velocity of the electrons
(a) decreases.
(b) increases.
(c) remains unchanged.
(d) drift velocity of electrons has no relationship with battery voltage.
(Kindly provide reasons)​

Answer 1

Answer:

The flow of current current is nothing but drift velocity of electrons. Since current is directly proportional to voltage applied, drift velocity of electrons will also be directly proportional to the voltage applied. And it follows Ohm's law as V = I/R. So, if voltage is doubled, current is doubled and hence the drift velocity is doubled.