ac theory Quiz Practice Quiz | AC Theory

Alternating Current — AC stands for Alternating Current, which periodically reverses direction.

Hertz (Hz) — Frequency is measured in Hertz (Hz), representing cycles per second.

Voltage and current are in phase — In a resistive circuit, voltage and current rise and fall together (in phase).

Inductor and Capacitor — Inductors store energy in a magnetic field, and capacitors in an electric field.

Vrms = Vp / ?2 — Vrms (Root Mean Square) = Vpeak / ?2 for a sinusoidal AC signal.

Question 1 of 5

What does 'AC' stand for in AC circuits?

AC stands for Alternating Current, which periodically reverses direction.

Question 2 of 5

Frequency is measured in Hertz (Hz), representing cycles per second.

Question 3 of 5

In a resistive circuit, voltage and current rise and fall together (in phase).

Question 4 of 5

Inductors store energy in a magnetic field, and capacitors in an electric field.

Question 5 of 5

Vrms (Root Mean Square) = Vpeak / ?2 for a sinusoidal AC signal.