A parallel-plate capacitor in vacuum has plate area A and separation d…

Question

A parallel-plate capacitor in vacuum has plate area A and separation d. Its capacitance is

Accepted Answer

C. {'text': 'ε₀ A / d', 'label': 'C'}

1. For a parallel-plate capacitor, σ = Q / A and E = σ / ε₀.
2. V between plates = E × d = Q d / (ε₀ A).
3. C = Q / V = ε₀ A / d.
_Source: NCERT Class 12 Physics Part I, Ch 2 §2.12_

Answer

{'text': 'ε₀ A d', 'label': 'A'}

Answer

{'text': 'A / (ε₀ d)', 'label': 'B'}

Answer

{'text': 'ε₀ d / A', 'label': 'D'}