The function of a capacitor in an electric circuit is to?

A. measure the amount of current in the circuit.

B. increase circuit power

. C. allow current flow between its plates.

D. store electric charges.

Well let's see:

A). No. A capacitor doesn't measure anything.

B). No. The power delivered to the circuit is determined by

the battery or power supply and all the things in

the circuit that dissipate energy. A capacitor doesn't

do any of these things.

C). No. If any current actually flows between its plates,

the capacitor is shot and can't do its job, and

must be replaced.

D). Yes. A capacitor stores charges on its plates, and

electrical energy in the field between its plates.