RL Circuits Online Test – Multiple Choice Questions and Answers

1. Which of the following power factors results in less energy loss in an RL circuit?

 
 
 
 

2. When the frequency is decreased, the impedance of a parallel RL circuit

 
 
 
 

3. Which of the following statements is true about a lag network?

 
 
 
 

4. In a parallel RL circuit, there are 3 A rms in the resistive branch and 3 A rms in the inductive branch. The total rms current is

 
 
 
 

5. When the resistor voltage in a series RL circuit becomes less than the inductor voltage, the phase angle

 
 
 
 

6. To increase the current in a series RL circuit, the frequency

 
 
 
 

7. When the frequency of the voltage applied to a series RL circuit is increased, the phase angle

 
 
 
 

8. As frequency increases

 
 
 
 

9. If the frequency is halved and the resistance is doubled, the impedance of a series RL circuit

 
 
 
 

10. If a load is purely inductive and the reactive power is 12 VAR, the apparent power is

 
 
 
 

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