Question Detail

PHY 102 Test Compilation PHY 102 3 Objective Question

Question

Parallel plate capacitor has capacitance C. Area doubled, distance halved. New capacitance?
Options
A C/4
B C/2
C C
D 4C
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

C = ε₀A/d. New A' = 2A, d' = d/2 → C' = ε₀(2A)/(d/2) = 4ε₀A/d = 4C.

Hint

C ∝ A/d.

Question Info