Question Detail
Question
The electric flux through a surface will be minimum when the angle between E and A is?
Correct Answer
Option A is the correct answer.
Detailed Explanation
Flux Φ = EAcosθ is minimized (zero) when θ = 90°, since the field is then parallel to the surface and contributes no flux through it.
Hint
Flux depends on cosθ — at what angle does cosine reach its minimum value of zero?