RL Circuits Online Test – Multiple Choice Questions and Answers

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

 
 
 
 

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

 
 
 
 

3. As frequency increases

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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