Question

Assertion$\left(A\right)$: In a region where, uniform electric field exists, the net charge within a volume of any size is zero.

Reason$\left(R\right)$: Net electric flux within any closed surface in the region of uniform electric field is zero.

Select the most appropriate answer from the options given below

• A. Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
• B. Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$
• C. $A$ is true but $R$ is false
• D. $A$ is false and $R$ is also false

Answer 1

The correct option is A Both $A$ and $R$ are true and $R$ is the correct explanation of $A$

Net electric flux linked with any closed surface placed in the region of uniform electric field is zero. i.e., Number of electric lines of force entering the closed surface is equal to that of number of electric lines of force leaving the surface.

From Gauss's theorem, net flux through any closed surface will be zero, when no net charge is enclosed by the surface.

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Hence, $\left(A\right)$ is the correct answer.