ARRL Technician Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the ARRL Technician Exam with confidence. Study using flashcards and multiple choice questions, each equipped with hints and explanations. Ace your exam with ease!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is the ability to store energy in an electric field known as?

Resistance
Capacitance
Inductance
Voltage

The correct answer is: Capacitance

The ability to store energy in an electric field is known as capacitance. A capacitor is the component responsible for this storage, and it does so by accumulating charge on its plates, creating an electric field between them. This stored energy can be released when needed in electrical circuits. Capacitance is measured in farads (F) and indicates how much charge a capacitor can store per volt across its plates. Resistance refers to the opposition to the flow of current in a circuit, while inductance relates to the storage of energy in a magnetic field created by current flowing through a coil. Voltage, on the other hand, is the measure of electric potential difference between two points. In summary, capacitance specifically describes the characteristic of storing energy in an electric field, thus making it the correct choice.