Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Current Electricity

Question:

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.

Options:

Both (A) and (R) are true and (R) is the correct explanation of (A).

Both (A) and (R) are true but(R) is NOT the correct explanation of (A).

(A) is true but (R) is false.

Both (A) and (R) are false.

Correct Answer:

Both (A) and (R) are true and (R) is the correct explanation of (A).

Explanation:

 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.