What measures the storage of energy in a capacitor?

• A. Ohms
• B. Henrys
• C. Farads
• D. Volts

Answer: (C)

The storage of energy in a capacitor is measured in Farads. This unit quantifies a capacitor's ability to store charge; specifically, one Farad is defined as the capacitance where one volt across the capacitor causes one coulomb of electric charge to be stored. This relationship illustrates the fundamental principle of capacitance: it is a measure of how much electrical energy can be stored for a given voltage level.

The other units mentioned relate to different electrical properties. Ohms measure resistance in an electrical circuit, Henrys measure inductance, which relates to how inductors store energy in magnetic fields, and Volts measure electric potential or voltage, which indicates the potential energy per unit charge. Thus, while all are important in the context of electricity, Farads specifically pertain to capacitance and the energy storage capability of capacitors.