Question Detail
Question
For a parallel-plate capacitor with plate area A, separation d, and a dielectric material with dielectric constant K, what is its capacitance?
Correct Answer
Option B is the correct answer.
Detailed Explanation
The text states: 'The capacitance of a parallel-plate capacitor whose opposing plate faces, each of area A, are separated by a small distance d is given by C = Kε₀A/d' (Page 12, Equation 25.9).
Hint
Check the formula for a parallel-plate capacitor on page 12. Remember that ε₀ is the permittivity of free space.