Question

The distance between two plates of a capacitor is $d$ and its capacitance is $C_1$, when air is the medium between the plates. If a metal sheet of thickness $\frac {2d}{3}$ and of the same area as plate is introduced between the plates, the capacitance of the capacitor becomes $C_2$. The ratio $\frac {C_2}{C_1}$ is

• A. 4:1
• B. 2:1
• C. 3:1
• D. 1:1

Answer 1

Answer: (C)

3:1

Answer 2

The correct option is (C): 3:1.