Capacitance

The action of neutralizing the charge by connecting a conducting path across the dielectric is called

It is the ability of a dielectric to hold or store an electric charge

They are constructed by placing a ceramic dielectric material between layers of conductive film which form the capacitor plates.

Two rolls of tinfoil conductor separated by a paper dielectric are rolled into a compact cylinder.

They are constructed much like paper capacitors except that the paper dielectric is replaced with a plastic film.

Thin mica sheets as the dielectric are stacked between tinfoil sections for the conducting plates to provide the required capacitance.

How much charge, Q is stored by a 0.05 µF capacitor if the voltage across the plates equals 10V

• 0.5 µC

• 5 µC

• 50 µC

• 500 µC

How much charge, Q is stored by a 0.25 µF capacitor if the voltage across the plates equals 15V.

• 0.375 µC

• 37.5 µC

• 3.75 µC

• 375 µC

How much charge, Q, is stored by a 30 µF capacitor if the voltage across the plates equals 9V

• 0.27 µC

• 2.7 µC

• 27 µC

• 270 µC

Which of the following factors directly affects the capacitance of a parallel plate capacitor?

• The distance between the plates and the temperature of the environment.

• The surface area of the plates and the dielectric material between them

• The voltage applied across the plates and the current passing through them

• The shape of the plates and the resistance of the connecting wires