Electrical Engineering - Series Circuits

Exercise :: Series Circuits - General Questions

6. 

When one of three series resistors is removed from a circuit and the circuit is reconnected, the current

A. increases
B. increases by one-third
C. decreases by one-third
D. decreases by the amount of current through the removed resistor

Answer: Option A

Explanation:

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7. 

The total power in a certain circuit is 12 W. Each of the four equal-value series resistors making up the circuit dissipates

A. 12 W
B. 48 W
C. 3 W
D. 8 W

Answer: Option C

Explanation:

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8. 

The following resistors (one each) are connected in a series circuit: 470 , 680 , 1 k, and 1.2 k. The voltage source is 20 V. Current through the 680 resistor is approximately

A. 60 mA
B. 30 mA
C. 6 mA
D. 300 mA

Answer: Option C

Explanation:

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9. 

A series circuit consists of a 4.7 k, a 12 k, and a 2.2 k resistor. The resistor that has the most voltage drop is

A. the 12 k
B. the 2.2 k
C. the 4.7 k
D. impossible to determine from the given information

Answer: Option A

Explanation:

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10. 

All the voltage drops and the source voltage added together in a series circuit is equal to

A. the total of the voltage drops
B. the source voltage
C. zero
D. the total of the source voltage and the voltage drops

Answer: Option C

Explanation:

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