AC Circuit Quiz

What is the most common AC waveform?

• Square wave

• Triangle wave

• Sine wave

• Sawtooth wave

In an AC circuit, what unit is used to measure frequency?

• Volts

• Ohms

• Hertz (Hz)

• Amperes

What is the relationship between the period and frequency of an AC waveform?

• They are equal

• They are inversely proportional

• They are directly proportional

• They are unrelated

What is the formula to calculate the RMS value of a sine wave?

• RMS = 0.5 x peak value

• RMS = 0.707 x peak value

• RMS = 1.5 x peak value

• RMS = peak value

What does RMS stand for?

• Root Minimum Square

• Root Maximum Square

• Root Mean Square

• Root Medium Square

What is the phase difference between voltage and current in a purely resistive AC circuit?

• 0°

• 90°

• 180°

• 360°

What is the main purpose of a transformer?

• To store energy

• To convert DC to AC

• To step up or step down AC voltage

• To step down DC voltage

What is inductance measured in?

• Farads

• Ohms

• Henries

• Watts

In which type of circuit does the current lead the voltage by 90 degrees?

• Purely inductive

• Purely capacitive

• Purely resistive

• RL circuit

What type of circuit contains only resistance and inductance?

• RC circuit

• RL circuit

• LC circuit

• RLC circuit