Assertion (A) : The drift velocity of electrons in a conductor is very small, when it is connected to the two ends of a battery.
Reason (R) : Electrons de-accelerate when they undergo collisions from the positive kernels.
Answer & explanation
Correct answer: option 1
The drift velocity of electrons in a conductor is very small, when it is connected to the two ends of a battery. This is because electrons de-accelerate when they undergo collisions from the positive kernels.