Explore the fundamentals of electric current in Chapter 23: Electric Current. This quiz covers key concepts such as electron flow, units of current, electric charge, and circuit behavior. It assesses understanding of how electric fields influence electron movement, enhancing both academic and practical knowledge.
1 A.
10 A.
12 A.
120 A.
None of these
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Parallel.
Perpendicular.
Series.
None of these
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Pressure.
Current.
Resistance.
All of these
None of these
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By being bumped by other electrons.
By colliding with molecules.
By interacting with an established electric field.
Because the wires are so thin.
None of these
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More than the resistance of either lamp.
Less than the resistance of either lamp.
None of these
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5 V
10 V
15 V
20 V
More than 20 V
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Woman's body.
Ground.
Power plant.
Hairdryer.
Electric field in the air.
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Both charge and energy.
Energy.
Charge.
Neither charge nor energy.
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Is electrically charged.
May be electrically charged.
Is never electrically charged.
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2 ohms
5 ohms
10 ohms
20 ohms
More than 20 ohms
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1/6 watts.
2 watts.
60 watts.
20 watts.
240 watts.
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Increases.
Decreases.
Stays the same.
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Storing electrical energy.
Boosting voltage.
Limiting current.
Voltage modification.
Changing ac to dc.
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6 joules.
6 amperes.
6 ohms.
6 watts.
6 newtons.
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0.25 A.
0.5 A.
2 A.
4 A.
More than 4 A.
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More current.
Less current.
The same current.
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Decreases.
Remains unchanged.
Increases.
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Battery
Fuse.
Capacitor.
All of the above choices are correct.
None of the above choices are correct.
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The bulb.
The wires.
A generator.
None of these
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Series with a switch for each.
Parallel with a switch for each.
Series without separate switches.
Parallel without separate switches.
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2.4 ohms.
4 ohms.
5 ohms.
5.5 ohms.
10 ohms.
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7 W.
18 W.
36 W.
48 W.
Not enough information to say
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$0.22.
$0.55.
$2.20.
$5.50.
None of these
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Zero.
110.
220.
Billions of billions.
None of these
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A fraction of a centimeter per second.
Many centimeters per second.
The speed of a sound wave.
The speed of light.
None of these
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An imbalance of charges in the wire.
More potential energy at one end of the wire than the other.
A potential difference across its ends.
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Decreases.
Remains unchanged.
Increases.
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Negatively.
Positively.
Not at all.
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Battery.
Generator.
Both of these
Neither of these
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Greater across the lamp with the thick filament.
Greater across the lamp with the thin filament.
The same for both lamps.
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The power company.
Electrical outlet.
Atoms in the light bulb filament.
The wire leading to the lamp.
The source voltage.
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Thinner.
Thicker.
The same.
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The speed of sound waves in metal.
The speed of light.
1000 cm/s.
Less than 1 cm/s.
Dependent on how quickly each electron bumps into the next electron.
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Increases.
Decreases.
Stays the same.
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40 W.
160 W.
320 W.
12,800 W.
None of these
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Charge flows in a closed circuit.
Voltage flows through an open or a closed circuit.
Resistance flows through an open circuit.
Current is the primary cause of voltage.
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Different electrons; the ones that flow in the circuit to your lamp.
The same electrons.
The positive charges that flow in the filament.
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The 60-W bulb
The 100-W bulb
Both have the same resistance.
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Increases via the inverse-square law.
Changes magnitude and direction with time.
Is the same everywhere.
Is non-existent.
None of these
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Parallel.
Perpendicular.
Series.
Haste.
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Definitely less.
Often less.
Actually more.
The same.
Incredibly, all of these
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The same current.
More current.
Less current.
Sometimes more, sometimes less.
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Potential drop.
Conductivity.
Resistance.
Electromagnetic force.
None of the above choices are correct.
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A dry cell, wet cell or battery.
The back emf of motors.
The power station generator.
The electrical circuit itself.
None of these
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Boosting the energy output of a circuit.
Increasing the current in a resistor.
Smoothing pulsed current.
Switching dc to ac in a circuit.
Increasing or decreasing voltage.
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110 coulombs of charge flow through the lamp every second.
110 joules of energy are converted to heat and light in the circuit every second.
110 joules of energy are given up by each coulomb of charge making up the current in the circuit.
110 joules of energy are shared among all the coulombs in the circuit at any instant.
None of the above
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Touching the light fixture
Touching the generator
Touching both are about equally dangerous.
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22 ohms.
44 ohms.
220 ohms.
440 ohms.
None of these
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