PHYSICS · Single correct · CBSE · Physics · Electrostatic Potential and Capacitance · Electrostatic Potential and Capacitance
Problem
Capacitor X has plate area A, plate separation d, and is filled with air. Capacitor Y has plate area 2A, plate separation 2d, and is completely filled with a dielectric whose constant is κ=2. Which of the following correctly compares the capacitances of the two capacitors?
(a) Capacitor Y has the same capacitance as capacitor X.
(b) Capacitor Y has four times the capacitance of capacitor X.
(c) Capacitor Y has half the capacitance of capacitor X.
(d) Capacitor Y has twice the capacitance of capacitor X.