Series-Parallel Circuits Online Test – Multiple Choice Questions and Answers

1. When a Wheatstone bridge is in a balanced condition, the center voltmeter in the bridge will read:

 
 
 
 

2. A Wheatstone bridge can be used to determine an unknown

 
 
 
 

3. In a series–parallel circuit consisting of R1 and R2 in series and connected in parallel with R3, if R1 opens, then R2‘s voltage will:

 
 
 
 

4. In a series–parallel circuit, individual component power dissipations are calculated using:

 
 
 
 

5. The positve (+) and negative (-) ends of the battery are called ______

 
 
 
 

6. The current flowing through an unloaded voltage divider is called the:

 
 
 
 

7. With 21 V applied, if R1 = 5 ohms, R2 = 35 ohms, and R3 = 14 ohms, what is the current of R2 if R1 is series connected with parallel circuit R2 and R3?

 
 
 
 

8. If R1 is in series with parallel connected to R2 and R3, what happens to total current if R2 opens?

 
 
 
 

9. The first goal to accomplish in analyzing a complex series-parallel circuit is to

 
 
 
 

10. A device able to supply electrical energy is a ________

 
 
 
 

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