AC Circuits

What does RMS stand for in the context of AC circuits?

• Rapid Mean Square

• Real Mean Square

• Random Mean Square

• Root Mean Square

What is the unit of inductance?

• Volts

• Henrys

• Amperes

• Ohms

In a DC circuit with an inductor, what happens to the current when the battery is removed?

• The current remains constant

• The current increases

• The current stops immediately

• The current decreases gradually

How does current behave in a resistor when connected to an AC voltage source?

• Current is out of phase with voltage

• Current lags voltage

• Current leads voltage

• Current is in phase with voltage

Which component in an AC circuit dissipates power as thermal energy?

• Inductor

• Transformer

• Resistor

• Capacitor