First slide

Electric Flux

Question

A cube has side of length 50 cm. A point charge of +35.4 $μ C$ is kept at the mid point of one edge. The total electric flux over the entire surface of the cube is

Moderate

A

$4 \times 10^{12} V - m$
B

$10^{8} V - m$
C

$10^{6} V - m$
D

$10^{12} V - m$

Solution

$Q_{n e t} = \frac{35.4}{4} μ C = 8.85 μ C$
By Gauss's law, $ϕ_{E} = \frac{Q_{n e t}}{\in_{0}} = \frac{8.85 \times 10^{- 6}}{8.85 \times 10^{- 12}}$ volt-metre
$= 10^{6} V - m$

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