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WorksheetsElectrical Energy
Total questions: 29
Worksheet time: 7hrs 15mins
What is the term applied to the ability to do work?
Power
Energy
Voltage
Current
An object that is in motion has what type of energy?
Kinetic
Magnetic
Newtonian
Potential
A book sitting on a shelf has what kind of energy?
Kinetic
Potential
Newtonian
Magnetic
Which of the following term(s) apply(ies) to the difference of potential between two bodies?
Voltage
Electromotive force
Both 1 and 2 above
Current
Which of the following terms is equal to “2.1 kV?”
210 V
2100 V
21,000 V
2.1 x 106 V
250μV is equal to which of the following terms?
.25 mV
.00025 V
250 x 10-6 V
All of the above
What is the general term that describes a device which supplies a voltage?
A voltage source
A voltage supply
A voltage generator
A voltage producer
In addition to friction, magnetism, and chemical action, which of the following methods can be used to produce a voltage?
Pressure
Heat
Light
Each of the above
Match the voltage producing method to the device: Heat
Crystal radio earpiece
Thermocouple
Automobile battery
Automobile generator
Match the voltage producing method to the device: Pressure
Crystal radio earpiece
Thermocouple
Automobile generator
Flashlight cell
Match the voltage producing method to the device: Magnetism
Thermocouple
Automobile battery
Automobile generator
Crystal radio earpiece
Match the voltage producing method to the device: Chemical action
Crystal radio earpiece
Flashlight cell
Thermocouple
Automobile generator
Current in an electric circuit is caused by which of the following actions?
Electrons moving from negative to positive
Electrons moving from positive to negative
Protons moving from negative to positive
Protons moving from positive to negative
When directed drift takes place, at what speed does the effect take place?
100,000 miles per hour
186,000 miles per second
300,000 meters per hour
500,000 meters per second
If the voltage in a circuit increases, what happens to the current?
Current increases
Current decreases
Current remains the same
Current fluctuates rapidly
Which of the following values is equal to 100mA?
1.0 ampere
10.0 amperes
0.10 ampere
0.01 ampere
What symbol is used to represent the ohm?
A
O
μ
Ω
If low weight is the major factor, which of the following materials should be used as a conductor?
Aluminum
Copper
Silver
Gold
What material is MOST widely used as a conductor in electrical equipment?
Aluminum
Copper
Silver
Gold
Resistance of a conductor will increase with which of the following changes to the cross-sectional area and length of the conductor?
Cross-sectional area is increased, length is increased
Cross-sectional area is increased, length is decreased
Cross-sectional area is decreased, length is increased
Cross-sectional area is decreased, length is decreased
A material whose resistance decreases as the temperature increases has what temperature coefficient?
Positive
Negative
Zero
Neutral
A material whose resistance remains constant as the temperature increases has what temperature coefficient?
Positive
Negative
Zero
Neutral
Resistance bears which, if any, of the following relationships to conductance?
A direct relationship
A reciprocal relationship
An inverse square relationship
None
Which of the following schematic symbols is used to represent a resistor?
How is the ability of a resistor to dissipate heat indicated?
By the wattage rating
By the voltage rating
By the resistance rating
By the tolerance
A carbon resistor is color-coded orange, orange, orange. What is the resistance value of this resistor?
2.2 kΩ
3.3 kΩ
33.0 kΩ
440.0 kΩ
What are the allowable limits of ohmic value in a resistor color coded blue, green, yellow, gold?
682.5 kΩ to 617.5 kΩ
715.0 kΩ to 585.0 kΩ
7.98 MΩ to 7.22 MΩ
8.36 MΩ to 6.84 MΩ
What is the ohmic value of the resistor?
8Ω
79.1Ω
79.0Ω
80.1Ω
What is the specified tolerance of the resistor?
1%
5%
10%
2%
