Series Circuits Model(1st)

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

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Increases by one-fourth
Remains the same
Increases
Decreases

The total resistance of a series circuit is equal to the difference between the largest and smallest value resistors.

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False
True

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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3 W
48 W
8 W
12 W

Three 680 Ω resistors are connected in series with a 470 V source. Current in the circuit is

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23 mA
690 mA
230 mA
69 mA

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 Ω. If each resistor is operating in the circuit at its maximum power dissipation, total current flow is

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190 mA
19 mA
27 mA
2.7 mA

Four equal-value resistors are in series with a 12 V battery and 13.63 mA are measured. The value of each resistor is

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880 Ω
22 Ω
88 Ω
220 Ω

A series circuit acts as a current divider.

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False
True

Which of the following series combinations dissipates the most power when connected across a 120 V source?

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Three 220 Ω resistors
Four 220 Ω resistors
Two 220 Ω resistors
One 220 Ω resistor

Two 6 V batteries are connected series aiding across two 1.2 kΩ resistors in series. Current through each resistor is

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2.5 mA
10 mA
0 A
5 mA

If a 6 V and a 9 V source are connected series aiding, the total voltage is

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3 V
6 V
15 V
9 V

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

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True
False

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

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68 %
47 %
69 %
6.91 %

A series circuit consists of three resistors with values of 120 Ω, 270 Ω, and 330 Ω. The total resistance is

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Less than 120 Ω
The average of the values
720 Ω
120 Ω

To measure the current out of the second resistor in a circuit consisting of four resistors, an ammeter can be placed

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At the negative terminal of the source
Between the third and fourth resistors
At any point in the circuit
Between the second and third resistors

A series circuit acts as a voltage divider.

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True
False

The total resistance of eight 5.6 kΩ resistors in series is

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8 Ω
4,480 Ω
44,800 Ω
5,600 Ω

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

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Cannot be determined
960 Ω
9,600 Ω
1.2 kΩ

A short in a series circuit prevents current.

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False
True

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

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The 2.2 kΩ
The 12 kΩ
The 4.7 kΩ
Impossible to determine from the given information

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

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0 V
10 V
2.32 V
8.39 V

‘Series aiding’ is a term sometimes used to describe voltage sources of the same polarity in series.

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True
False

In a series circuit, the individual powers are additive.

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True
False

Two 1.5 V cells are connected series opposing across two 100 Ω resistors in series. Total current flow is

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15 mA
0 A
5 mA
2 mA

A series circuit has a 24 V source and a total resistance of 120 Ω. The current through each resistor is

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120 mA
200 mA
20 mA
24 mA

The term 'series opposing' means that sources are in series with opposite polarities.

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False
True

There are five resistors in a given series circuit and each resistor has 6 V dropped across it. The source voltage is

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6 V
Depends on the resistor values
30 V
Depends on the current flow

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

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6 V
0 V
0.6 V
1.2 V

The voltage at one point in a circuit is always measured relative to another point.

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False
True

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

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Zero
The source voltage
The total of the voltage drops
The total of the source voltage and the voltage drops

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

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6 mA
300 mA
30 mA
60 mA

If a 24 V and a 6 V battery are series opposing, the total voltage is

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30 V
24 V
18 V
0 V

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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1 A
3 A
0.3 A
4 A

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

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326 mA
32.6 mA
16.3 mA
163 mA

If you know the current anywhere in a series circuit, you know the current everywhere in a series circuit.

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False
True

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

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Increases by one-third
Decreases by one-third
Increases
Decreases by the amount of current through the removed resistor

Series Circuits Model(1st) : Question 1 of 35