A charge Q is enclosed by a Gaussian spherical surface of radius R . If radius is doubled, then outw

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1. Electric Charges and Fields

easy

A charge $Q$ is enclosed by a Gaussian spherical surface of radius $R$. If the radius is doubled, then the outward electric flux will

A

remain the same

B

be doubled

C

be reduced to half

D

increase four time

(AIPMT-2011)

Solution

$\phi_{\text {net }}=\frac{2 q}{\varepsilon_0}$

$\because$ Net flux does not depend on size of Gaussian surface

$\Rightarrow$ Flux remains unchanged.

Standard 12

Physics

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