Question Detail

PHY 102 Test Compilation PHY 102 1 Objective Question

Question

dielectric slab is slowly inserted between the plates of a parallel plate capacitor, while the potential difference between the plates is held constant by a battery. As it is being inserted:
Options
A the capacitance, the potential difference between the plates, and the charge on the positive plate all increase
B the capacitance and the charge on the positive plate increase but the potential difference between the plates remains the same
Correct Answer
C the capacitance, the potential difference between the plates, and the charge on the positive plate all decrease
D the potential difference between the plates increases, the charge on the positive plate decreases, and the capacitance remains the same
Correct Answer

Option B is the correct answer.

Detailed Explanation

With V constant by battery, inserting dielectric increases capacitance (C = κC₀). Since Q = CV, charge increases. V remains constant because battery holds it.

Hint

Battery keeps voltage constant. Dielectric increases capacitance. Q = CV.

Question Info