First slide

Drift velocity

Question

Current flows through a metallic conductor whose area of cross-section increases in the direction of the current. If we move in this direction.

Easy

A

the current will change
B

the carrier density will change
C

the drift velocity will increase
D

the drift velocity will decrease

Solution

$\begin{array}{l} I = {neAv}_{d} \Rightarrow v_{d} = \frac{I}{neA} \\ v_{d} \propto \frac{I}{A}; so as A increases v_{d} decreases \end{array}$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App