AIPMT PRELIMS 2010 Physics Electric Flux MCQ Question
A square of side L meter, as shown in the figure, is placed in a uniform electric field E (volt/m) acting along the same plane at an angle θ with the horizontal side of the square as shown in figure. The electric flux linked to the surface, in units of volt-m, is
Zero
EL²
EL² cosθ
EL² sinθ
Correct Answer
Detailed Explanation
The electric flux through a surface is given by ϕ = E ⋅ S, where E is the electric field and S is the area vector. Since E is perpendicular to S, the flux is zero.
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