Question

Which of the following factors do not influence the capacity of a capacitor?

• A. distance between the plates
• B. material of the plates
• C. area of the plates
• D. curvature of the plates

Answer 1

Answer: (B)

material of the plates

The capacitance of parallel plate capacitor is $C=\frac{A{ϵ}_0}{d}$ where $A=$ area of plates and $d=$ distance between plates.
The capacitance also depends on the curvature of plates because spherical plates capacitor and cylindrical plates have different capacitance.
Thus the capacitance is independent of material of plates.