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19 Cards in this Set
- Front
- Back
Like charges |
Repel each other. |
|
Impedance is: |
Opposition to alternating current flow. |
|
Current flow is: |
The flow of electrons in the circuit |
|
A conductor |
Any material that will readily release electrons is called: |
|
Silicon |
Semi-conductors are made of? |
|
I |
The symbol for current is: |
|
The ground wire is usually color coded: |
GREEN |
|
An electron has a |
negative charge |
|
Opposition to current flow |
Resistance OHM's |
|
ohmmeter |
uses its internal power to check a load or circuit |
|
volts X amps= |
WATTS |
|
In electrical wiring, a black colored wire usually indicates: |
HOT CONDUCTOR |
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What is the input side of a transformer called |
PRIMARY |
|
what is the output side of a transformer called |
SECONDARY |
|
A fuse is sized to protect the |
Wire in the ciruit |
|
One horsepower is equal to |
3.415 watts |
|
2.1KW |
2100 Watts |
|
The electric meter on a house measures |
amps passing through it. |
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Three phase loads require a minimum of _______ wires and a ground to operate. |
Three wires |