Term 1 of 168
What is a material that has a very high resistance and resists the flow of electrons?
What is an example of this? (20-431)
Insulator
Rubber, Glass, Paper, Plastic
Type NMC Cable
Semiconductor
Carbon, Germanium, Silicon
Ground Fault Circuit Interrupter (GFCI)
Term 2 of 168
What states that the amount of illumination on a surface varies inversely with the square of the
distance from the light source? (21-464)
Type NM Cable
In-Phase
Saddle
Straight
Cable
Inverse Square Law
,Term 3 of 168
What is a long metal rod used to make contact with the earth for grounding purposes? (20-437)
Proton
Electrode
Step-down
Lumen (lm)
Term 4 of 168
What is the mathematical mean of all instantaneous voltage values in the sine wave? (21-458)
Average Value (V avg) of a Sine Weve
Flexible Metal Conduit (FMC)
Generated Electricity
Voltage (E)
Term 5 of 168
What are the three typical shapes of receptacle boxes used in residential applications? (26-556)
Not as good of a conductor as copper
Cheaper and lighter
Square (Switches and Receptacles, Junction Boxes)
Octagonal (In ceilings for lighting fixtures, Junction Boxes)
Rectangular (Junction Boxes)
Saddle
Straight
Cable
Component
Pigtail
Clip
,Term 6 of 168
What are the disadvantages of Aluminum as a conductor?
Advantages? (21-461)
Thermal
Magnetic
Thermal-Magnetic
Electromotive Force (EMF) or Potential Difference
Not as good of a conductor as copper
Cheaper and lighter
Volt Amps (VA)
Term 7 of 168
What is an electric overcurrent protection device used to limit the rate of current flow in a circuit?
(20-438)
Circuit
Cycle
True
Fuse
Term 8 of 168
What is the process of pulling wires through conduit called? (20-570)
Fishing
Deburring
Proton
Watts (W)
, Term 9 of 168
What is the primary function of Equipment Grounding? (20-437)
Running it through stud walls and through floor joists through drilled holes
To provide protection for individual electrical devices.
True Power (P t)
Not as good of a conductor as copper
Cheaper and lighter
Term 10 of 168
What is the property of a circuit that causes it to appose a change in current due to the energy
stored in a magnetic field?
All transformers create this. (21-460)
Circuit
Voltage (E)
Inductance
Type NM Cable
Term 11 of 168
What are the most common power sources that directly produce DC voltage? (21-456)
Current (I)
Generated Electricity
Batteries and Photocells
Not as good of a conductor as copper
Cheaper and lighter
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