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  • What will be the electric flux through a disc by a point a charge which is kept at infinite distance from the disc?Option: 1 0<div clas

What will be the electric flux through a disc by a point a charge which is kept at infinite distance from the disc?

Option: 1

0


Option: 2

\frac{q}{2 \varepsilon_o}


Option: 3

\frac{q}{ \varepsilon_o}


Option: 4

\infty


Answers (1)

best_answer

 

 

As we know that the electric flux through a disc is given by - 

 

\\ \phi = \frac{q}{2 \varepsilon_0}(1- \frac{a}{\sqrt{a^2+R^2}}) \\ \\ If \ a \ tends \ to \ \infty then , \\ \\ \phi = \frac{q}{2 \varepsilon_0}(1- \frac{a}{a \sqrt{1+ \frac{R^2}{a^2}}}) \\ \\ \phi = \frac{q}{2 \varepsilon_0}(1 -1) = 0

 

Posted by

Rishabh

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