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
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Four equal-value resistors are in series with a 12 V battery and 13.63 mA are measured. The value of each resistor is
A. 22 Ω
B. 220 Ω
C. 880 Ω
D. 88 Ω
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‘Series aiding’ is a term sometimes used to describe voltage sources of the same polarity in series.
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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
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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
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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
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The total power in a certain circuit is 12 W. Each of the four equal-value series resistors making up the circuit dissipates
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Five resistors are connected in a series and there is a current of 3 A into the first resistor. The amount of current into the second resistor is
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The total resistance of a series circuit is equal to the difference between the largest and smallest value resistors.
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There are five resistors in a given series circuit and each resistor has 6 V dropped across it. The source voltage is
A. 6 V
B. Depends on the current flow
C. Depends on the resistor values
D. 30 V
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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
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If you know the current anywhere in a series circuit, you know the current everywhere in a series circuit.
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A short in a series circuit prevents current.
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To measure the current out of the second resistor in a circuit consisting of four resistors, an ammeter can be placed
A. Between the second and third resistors
B. At the negative terminal of the source
C. Between the third and fourth resistors
D. At any point in the circuit
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A series circuit consists of a 4.7 kΩ, a 12 kΩ, and a 2.2 kΩ resistor. The resistor that has the most voltage drop is
A. The 12 kΩ
B. The 2.2 kΩ
C. The 4.7 kΩ
D. Impossible to determine from the given information
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The sum of all the voltage drops around a single closed loop in a circuit is zero.
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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
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Three 680 Ω resistors are connected in series with a 470 V source. Current in the circuit is
A. 69 mA
B. 230 mA
C. 23 mA
D. 690 mA
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The term 'series opposing' means that sources are in series with opposite polarities.
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A certain series circuit consists of a 8 1 W resistor, a 4 1 W resistor and a 2 1 W resistor. The total resistance is 1200 Ω. If each resistor is operating in the circuit at its maximum power dissipation, total current flow is
A. 27 mA
B. 2.7 mA
C. 19 mA
D. 190 mA
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