Define capacitance of a capacitor?

Define the capacitance of capacitor. Derive an expression for the capacity of parallel plate capacitor with a dielectric slab placed in between the plates of capacitor.

What is effect of dielectric on the capacitance of a capacitor?

Does the capacitance of a capacitor depend upon its shape?

Define dielectric constant of a medium in terms of capacitance of a capacitor.

Define the term "dielectric constant" of a mdedium in terms of capacitance of a capacitor.

On what factors the capacitance of a capacitor depends?

A parallel plate capacitor with oil between the plates has a capacitance C(dielectric constant of oil is 2). If the oil is removed, then capacitance of the capacitor becomes