Effect of dielectric on capacitance of parallel plate capacitor

Capacitance of parallel plate capacitor has dimensions.

What is the effect of presence of a dielectric medium on (i) capacitance of a parallel plate capacitor (ii) electrostatic force between two charges ?

Capacitance of a parallel plate capacitor can be increased by

Briefly explain the principle of a capacitor. Derive an expression for the capacitance of a parallel plate capacitor, whose plates are separated by a dielectric medium.

Define capacitance of a parallel plate capacitor,Derive an expression for the capacitance of a parallel plate capacitor with dielectric of thickness "t," where "(t

Derive an expression for the capacitance of a parallel-plate capacitor filled with a dielectric.