What is a capacitor?

What is capacitor? Explain its principle.

What is capacitor? Explain its principle.

What is capacitor ? And explain capacitance. Give its SI unit.

What are capacitors?

Net charge on a capacitor is always zero, then what does a capacitor store? Explain.

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

The capacity of a capacitor becomes 20muF when gap between the capacitor is filled completely by a dielectric slab of k = 4. What is the capacity of a capacitor with air in between the plates?