Principles

The product of the readings of an AC voltmeter and AC ammeter is called:

Answer

Apparent power.

Volts times amps gives apparent power (VA). It equals true power (watts) only when voltage and current are in phase.

Source: FCC Element 3 question pool, 3A

Not the answer

  • True power.
  • Power factor.
  • Current power.

Practice this

The FCC Element 3 (General Radiotelephone) exam is 100 questions and takes 75 correct — 75% — to pass. Element 1, the other half of the licence, is 24 questions and takes 18 correct. The app’s page carries a free ten-question test drawn from the same bank, marked as you go.

Take the free practice test