What is capacitation?

A capacitor charged form a 50 V d.c. supply is found to have a charge of 10muC . What is the capacitance of the capacitor and how much energy is stored in it?

A parallel plate capacitor has each plate of 0.06 m diameter separated by 0.05 cm of air. What is the capacitance of the capacitor? What would be the radius of a sphere having the same caapcitance?

What is a capacitor? Derive an expression for capacitance of a parallel plate capacitor.

What is capacitive reactance?

What is the capacitive reactance of a capacitor used in a circuit having d.c. e.m.f.? Explain.

The plates of a parallel plate capacitor are 50m^2 and one mm apart apart what is tis capacitance?

An alternating e.m.f is applied across a capacitor. Show that current in it leads the applied e.m.f. by 90^@ what is capacitive reactance of such a circuit? Write down the units of capacitive reactance.