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Alternating Current (AC) Circuits Quiz

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1. What does the impedance (Z) in an AC circuit represent?

2. What factor primarily determines the resonant frequency of an LC circuit?

3. Which of the following is true regarding the phase difference between voltage and current in a purely inductive AC circuit?

4. What is the purpose of a transformer in an AC circuit?

5. In an AC circuit with both inductive and capacitive elements, when does resonance occur?

6. How does the power factor of an AC circuit affect its efficiency?

7. What effect does a capacitor have on the phase relationship between voltage and current in an AC circuit?

8. Which component in an AC circuit is responsible for storing energy in a magnetic field?

9. What does RMS (Root Mean Square) voltage of an AC circuit signify?

10. How is the apparent power in an AC circuit typically measured?