In a 20 Vac series RC circuit, if 20 V is read across the resistor and 40 V is m

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Question
In a 20 Vac series RC circuit, if 20 V is read across the resistor and 40 V is measured across the capacitor, the applied voltage is
Options
A. 45 Vac
B. 50 Vac
C. 60 Vac
D. 65 Vac

Correct Answer

45 Vac

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4. As frequency increases
Options
A. both series and parallel RC impedance decrease
B. series RC impedance decreases and parallel RC impedance increases
C. series RC impedance increases and parallel RC impedance decreases
D. both series and parallel RC impedance increase

5. What is the effect of increasing the resistance in a series RC circuit?
Options
A. There will be no effect at all.
B. The current will increase.
C. The phase shift will decrease.
D. The input voltage will increase.

7.
If the frequency increases in the given circuit, how would the total current change?
Options
A. The total current would increase.
B. The total current would decrease.
C. The total current would remain the same.
D. More information is needed in order to predict how the total current would change.

10. Which statement about a series RC circuit is true?
Options
A. The capacitor's voltage drop is in phase with the resistor's voltage drop.
B. The current leads the source voltage.
C. The current lags the source voltage.
D. The resistor voltage lags the current.

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