AIPMT MAIN2008Physics-Electrostatics
AIPMT MAIN 2008 Physics Capacitance MCQ Question
Type: MCQ-conceptual-Medium-Class 12
The energy required to charge a parallel plate condenser of plate separation d and plate area of cross-section A such that the uniform electric field between the plates is E, is
A
½ ε₀E² Ad
B
½ ε₀E² A.d
C
ε₀E² / Ad
D
ε₀E² Ad
Correct Answer
Option A
Detailed Explanation
The energy stored in a capacitor is given by U = ½ ε₀E² Ad, where ε₀ is the permittivity of free space, E is the electric field, A is the area, and d is the separation.
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