# Home / EEE / Series Circuits :: General Questions

### EEE :: Series Circuits

1. When a fourth resistor is connected in series with three resistors, the total resistance

2.  A. increases by one-fourth B. increases C. decreases D. remains the same   3. A string of five series resistors is connected across a 6 V battery. Zero voltage is measured across all resistors except R3. The voltage across R3 is

4.  A. 0 V B. 1.2 V C. 6 V D. 0.6 V   5. A series circuit consists of three resistors with values of 120 , 270 , and 330 . The total resistance is

6.  A. less than 120 B. the average of the values C. 720 D. 120    7. A certain series circuit consists of a 1/8 W resistor, a 1/4 W resistor, and a 1/2 W resistor. The total resistance is 1200 . If each resistor is operating in the circuit at its maximum power dissipation, total current flow is

8.  A. 27 mA B. 2.7 mA C. 19 mA D. 190 mA   9. Which of the following series combinations dissipates the most power when connected across a 120 V source?

10.  A. one 220 resistor B. two 220 resistors C. three 220 resistors D. four 220 resistors   11. When one of three series resistors is removed from a circuit and the circuit is reconnected, the current

12.  A. increases B. increases by one-third C. decreases by one-third D. decreases by the amount of current through the removed resistor   13. The total power in a certain circuit is 12 W. Each of the four equal-value series resistors making up the circuit dissipates

14.  A. 12 W B. 48 W C. 3 W D. 8 W   15. 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

16.  A. 60 mA B. 30 mA C. 6 mA D. 300 mA   17. 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

18.  A. the 12 k B. the 2.2 k C. the 4.7 k D. impossible to determine from the given information   19. All the voltage drops and the source voltage added together in a series circuit is equal to

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