GED Science Practice

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What is the function of a capacitor?

  1. a major biotic community characterized by plant life and climate

  2. an electrical device used to store electrical charge

  3. unit of heat required to raise the temperature of water

  4. branching off from the trachea into the lungs

The correct answer is: an electrical device used to store electrical charge

A capacitor is an electrical device used to store electrical charge. Capacitors are commonly used in electronic circuits to store energy transiently, filter out noise, and smooth voltage fluctuations. They are essential components in many electronic devices like radios, computers, and televisions. The other options provided do not accurately describe the function of a capacitor and are unrelated to electrical circuits.

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