NEET Physics Question - Current Electricity - Relation between Current and Drift Velocity

Assertion (A): As drift velocity increases current flowing through conductor decreases.

Reason (R): Current flowing through conductor is inversely proportional to drift velocity.

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

Both (A) & (R) are true but the (R) is not the correct explanation of the (A)

(A) is true but (R) is false

Both (A) and (R) are false

Solution:

The relation between current (I) and drift velocity \(v_d\) is \(I = nAe v_d\), where (n) is carrier density, (A) is cross-sectional area, and (e) is electron charge. This equation shows that current is directly proportional to drift velocity. Therefore, both Assertion (A) and Reason (R) are false.

Rankers Physics

Drift Velocity and Current

Solution:

Leave a Reply Cancel reply