RC Circuits Online Test – Multiple Choice Questions and Answers

1. For a certain load, the true power is 150 W and the reactive power is 125 VAR. The apparent power is

 
 
 
 

2. What is the angular difference between +j4 and –j4?

 
 
 
 

3. Which statement about a series RC circuit is true?

 
 
 
 

4. 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

 
 
 
 

5. What is the effect of increasing the resistance in a series RC circuit?

 
 
 
 

6. Power that is measured in volt-amperes is called

 
 
 
 

7. The voltages in Problem 4 are measured at a certain frequency. To make the capacitor voltage greater than the resistor voltage, the frequency

 
 
 
 

8. When the frequency of the source voltage decreases, the impedance of a parallel RC circuit

 
 
 
 

9. In the complex plane, the number 14 – j5 is located in the

 
 
 
 

10. In a series RC circuit, 12 V(rms) is measured across the resistor and 15 V(rms) is measured across the capacitor. The rms source voltage is

 
 
 
 

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