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Electrical Theory
Electrical Theory
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Electrical Theory Chapter 5
Flashcards
35 cards
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Practice quiz
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Questions
35
Answers
1
In electricity, power is measured in __________.
Horsepower
Ohms
Amps
Watts
2
More than one path is available for the current to flow in a _____ circuit.
Broken
Parallel
Printed
Series
3
Ohm's law states the relationship between power, voltage, and current.
True
False
4
Each atom has a center made up of __________.
Neutrons
Protons
Electrons
Both 2 and 3
5
In the United States, the standard current is ______ Hz(hertz)
120
240
60
50
6
Electrical potential is the ability to provide _______.
Amperage
Volts
Free Electrons
Free Protons
7
A cycle is one complete repetition of a waveform.
True
False
8
A group of voltaic cells connected electrically and suspended in electrolyte is called a(n) __.
Wet Cell
Generator
Battery
Anode
9
The two windings in a transformer are the _______.
First and Second
Primary and Main
Primary and Secondary
Main and Secondary
10
Watt's law states that ___________.
I = A * E
P = I * E
I = P * E
P = A * E
11
What is the total amperage of a parallel circuit having a total resistance of 12 Ω and 24 v.
288 amps
1/2 amps
6 amps
2 amps
12
A material in which electrons move easily is called a conductor.
True
False
13
Which of the following materials is not a good insulator?
Cork
Rubber
Carbon
Glass
14
A battery produces electricity chemically.
False
True
15
Metals conduct electricity well because they have a great number of free electrons.
False
True
16
What is the total resistance in a parallel circuit with resistances of 6 Ω, 4 Ω and 12 Ω.
2 Ohm's
16 Ohm's
2.5 Ohm's
22 Ohm's
17
The opposition to the flow of electrons through a conductor is called ________.
Resistance
Energy
Wattage
Amperage
18
In ________ current, the current flows in one direction.
Electrical
Alternating
Direct
Indirect
19
Equilibrium is the balance of electrons between two connected bodies.
True
False
20
What is the total resistance in a circuit with 240 volts and 16 amps?
15 Ohm's
15 volts
1/3 Ohm
3,840 Ohm's
21
What is the current in a circuit with 1500 watts of power and 120 volts?
12.5 amps
1/2 amp
12.5 volts
180,000 amps
22
Only one path is provided for the current to flow in a ______ circuit.
Printed
Broken
Series
Parallel
23
Electromotive force is measured in volts.
False
True
24
When loads are arranged in both series and parallel configurations, the circuit is called a __.
Versatile Circuit
Multi-use Circuit
Parallel Circuit
Complex Circuit
25
An atom's nucleus is made up of electrons and protons.
True
False
26
The pressure that moves electrons through a conductor is called _______.
Voltage
Amperage
Ohms
Resistance
27
A material in which electrons move easily is called a(n)____________.
Free Electron
Conductor
Wire
Insulator
28
A series circuit has a current of 2 A. What is the source voltage if the total resistance is 6Ω
3 volts
12 volts
1/3 volts
24 volts
29
A break anywhere in a series circuit stops the electron flow in the entire circuit.
False
True
30
Electrical Resistance is measured in _________.
Amps
Ohms
Watts
Ergs
31
According to electron theory, all matter is made up of ____________.
Electrons
Electricity
Atoms
Molecules
32
Alternating current continually ___________ the direction of flow.
Reverses
Decreases
Maintains
Increases
33
Work is the amount of ______ applied over a period of time.
Resistance
Friction
Voltage
Power
34
Voltage out of a transformer is directly related to the number of _______.
Primary Windings
Secondary Windings
Turns of wire in the winding
Substations
35
One kilowatt-hour is equivalent to _____ watts being used for one hour
1,000
100
10,000
10
