 A. 68 %
 B. 47 %
 C. 69 %
 D. 6.91 %
Series Circuits

The total resistance of a circuit is 680 Ω. The percentage of the total voltage appearing across a 47 Ω resistor that makes up part of the total series resistance is_____.

A series circuit consists of three resistors. Two resistors are 1.2 kΩ each. The total resistance is 12 kΩ. The value of the third resistor is_____.
 A. 9,600 Ω
 B. 960 Ω
 C. 1.2 kΩ
 D. Cannot be determined

A 12 V battery is connected across a series combination of 68 Ω, 47 Ω, 220 Ω, and 33 Ω. The amount of current is_____.
 A. 326 mA
 B. 16.3 mA
 C. 32.6 mA
 D. 163 mA

The sum of all the voltage drops around a single closed loop in a circuit is zero.
 A. True
 B. False

The following resistors (one each) are connected in a series circuit: 470 Ω, 680 Ω, 1 kΩ, and 1.2 kΩ. The voltage source is 20 V. Current through the 680 Ω resistor is approximately_____.
 A. 60 mA
 B. 30 mA
 C. 6 mA
 D. 300 mA

Two resistors are in series: a 5.6 kΩ resistor and a 4.7 kΩ resistor. The voltage drop across the 5.6 kΩ resistor is 10 V. The voltage across the 4.7 kΩ resistor is_____.
 A. 8.39 V
 B. 10 V
 C. 2.32 V
 D. 0 V

Two 1.5 V cells are connected series opposing across two 100 Ω resistors in series. Total current flow is_____.
 A. 15 mA
 B. 5 mA
 C. 2 mA
 D. 0 A

If you know the current anywhere in a series circuit, you know the current everywhere in a series circuit.
 A. True
 B. False

A series circuit consists of three resistors with values of 120 Ω, 270 Ω, and 330 Ω. The total resistance is_____.
 A. Less than 120 Ω
 B. The average of the values
 C. 720 Ω
 D. 120 Ω

When one of three series resistors is removed from a circuit and the circuit is reconnected, the current_____.
 A. Increases
 B. Increases by onethird
 C. Decreases by onethird
 D. Decreases by the amount of current through the removed resistor