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Questions and Answers
What is the frequency of AC current in hertz for most household electrical systems?
What is the frequency of AC current in hertz for most household electrical systems?
- 100
- 25
- 60 (correct)
- 50
Which component is used to convert AC current to DC current?
Which component is used to convert AC current to DC current?
- Capacitor
- Inductor
- Diode (correct)
- Transformer
What is the phase relationship between the voltage and current in a purely resistive AC circuit?
What is the phase relationship between the voltage and current in a purely resistive AC circuit?
- Voltage and current are out of phase by 180 degrees
- Voltage and current are in phase (correct)
- Voltage lags current by 90 degrees
- Voltage leads current by 90 degrees
