Question Detail
Question
If the distance between two closely spaced parallel plates is halved, the electric field between them is
Correct Answer
Option C is the correct answer.
Detailed Explanation
For parallel plates with constant voltage, E = V/d. If d halved, E doubles. But if charge constant, E = σ/ε₀ independent of d. Question ambiguous. Most assume constant V → E doubles. None say that. Assuming constant charge (isolated), E same. Option C.
Hint
If isolated, E independent of d.