Electric Flux | MCQs

Explanation

Electric Flux Maximum (Φ = E·A·cosθ)  

   - When the area vector is perpendicular to the electric field, θ = 0°, so cosθ = 1.  

   - Therefore, Φ = EA (maximum possible flux). 

Explanation

 According to Gauss's Law, the net electric flux through a closed surface depends on the net charge enclosed.

If equal and opposite charges are present inside the surface, their total is zero, so the net electric flux is also zero.

Explanation

Electric flux through a surface is defined clearly only for a closed surface.

Gauss’s Law applies to closed surfaces to calculate total flux.

Explanation

Electric flux (Φ) is maximum when E and A are parallel, i.e., angle = 0°.

Formula: Φ = E·A·cosθ → cos(0°) = 1 gives maximum flux.

Explanation

We know that for a Gaussian surface, flux = q/ε

Here, q = 10^-6 C and ε = 8.85 X 10^-12 C/Nm^2

Therefore, flux = 10^-6/8.85 X 10^-12 

= 1.12 X 10^5 Nm^2/C.

Explanation

If the angle between the vector area and the electric field is 30∘, then the flux will be maximum when √3/2.