Question

If a uniform electric field N/C exists in a region then electric flux through a plane surface of area 20.0 cm2 parallel to the y-z plane in Nm2/C will be

electric feild vector is this

Answer 1

Given:

A uniform electric field N/C exists in a region. Area is 20 cm².

To find:

Electric Flux through the surface?

Calculation:

• Let flux be $\phi$

• Area vector will be along $\hat{i}$ as area plane is along Y-Z plane.

• Also , convert area from cm² to m².

$\therefore \: \phi = \vec{E} \: . \: \vec{s}$

$\implies \: \phi = (2 \hat{i} + 3 \hat{j}) . ( \dfrac{20}{10000} \hat{i})$

$\implies \: \phi = 0.004 + 0$

$\implies \: \phi = 0.004 \: N {m}^{2} /C$

So, electric flux through the surface is 0.004 Nm²/C.