Series Circuits Model(1st)

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

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 %

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 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 acts as a voltage divider.

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True
False

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

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

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True
False

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

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

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

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

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

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

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

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

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

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

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

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False
True

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

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

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

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

In a series circuit, the individual powers are additive.

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True
False

A series circuit acts as a current divider.

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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 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

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

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

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

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

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

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True
False

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