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Class 12 Physics Practice Test: Power in AC Circuit : The Power Factor
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Class 12 Physics Practice Test: Power in AC Circuit : The Power Factor
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10 Questions

1. What is the power factor in a pure inductive or capacitive circuit?
2. How many types of power can be defined in an AC circuit?
3. Which among the following varies in both magnitude and sign over a cycle?
4. Which of the following is true about power factor?
5. The power in an AC circuit contains an inductor of 30 mH, a capacitor of 300 μF, a resistor of 70 Ω, and an AC source of 24 V, 60 Hz. Calculate the energy dissipated in the circuit in 1000 s.
6. Power factor has a unit of Watts.
7. Identify the expression for average power.
8. What is the power factor in a pure resistive circuit?
9. Apparent power is also known virtual power.
10. What is the power factor for a series LCR circuit at resonance?

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