The product of the readings of an AC...

Question 1 / 270705shqxu3ZRmJUCIUofsw0

Question 1 of 270705shqxu3ZRmJUCIUofsw0

The product of the readings of an AC voltmeter and ammeter in an AC circuit is called what?

Question 1 of 27070

The product of the readings of an AC voltmeter and ammeter in an AC circuit is called what?

🔍 Key Concepts

• In AC circuits, voltage × current gives a type of power, but there are different kinds: real (true), reactive, and apparent power • A voltmeter measures RMS (root mean square) voltage and an ammeter measures RMS current in AC systems • Think about single‑phase AC power where basic textbooks define S, P, and Q (apparent, real, and reactive power)

💭 Think About

• When you multiply the RMS voltage reading by the RMS current reading, are you automatically including the effect of power factor (cos φ), or not? • Which term is used for the simple product V × I in an AC circuit, before adjusting for phase angle between voltage and current? • Which kind of power (real, reactive, or apparent) is actually delivered as usable work to a load, and which one is just the combination of them on a power triangle?

✅ Before You Answer

• Confirm which power uses the formula P = V × I × power factor (cos φ) • Confirm which power is represented by the symbol S and measured in volt‑amperes (VA), not watts • Eliminate any choice that is not a standard electrical engineering term for AC power.

Question 1 of 27070

The product of the readings of an AC voltmeter and ammeter in an AC circuit is called what?

Reverse power

Apparent power

Current power

None of the above