The Average Power Input to a Series Alternating Current Circuit

question 45

Multiple Choice

The average power input to a series alternating current circuit is minimum when:

• A)there are only a resistor and capacitor in the circuit.
• B)there are only a resistor and inductor in the circuit.
• C)there is only a resistor in the circuit.
• D)XL = XC and the circuit contains a resistor, an inductor and a capacitor.
• E)there is only a capacitor in the circuit.

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