Question

Capacitance depends on the

• A. Charge on capacitor
• B. Potential difference across capacitor
• C. Dielectric constant of the substance
• D. Area of plates

Answer 1

Answer: (C), (D)

The correct options are
C Dielectric constant of the substance
D Area of plates

If a substance of dielectric constant $K$ is filled between the plates of a parallel plate capacitor, then its capacitance is given by:

$C=\frac{K{\epsilon }_{0}A}{d}$

where $A=$ area of plates

$d=$ separation between plates

It is clear from above equation, that $C\propto K$ i.e. capacitance depends upon dielectric constant of the substance separating the plates.

And, $C\propto A$ i.e. capacitance depends upon area of plates.