| A | B |
|---|
| ampere (amp) | unit of current flow |
| amperage | amount (quantity) of electron or current flow (the number of electrons passing a point in a given time) in an electrical circuit |
| ammeter | a meter used to measure current flow in an electrical circuit |
| closed circuit | a complete path for electrons to flow on |
| current, electrical | electrons flowing along a conductor |
| energy | the capacity for doing work |
| electric heat | the process of converting electrical energy, using resistance , into heat |
| ground, electrical | a circuit or path for electron flow to earth ground |
| voltage | the potential electrical difference for electron flow from one line to another in an electrical circuit or force that pushes electrons through a wire |
| voltmeter | an instrument used for checking electrical potential |
| volt-ohm-milliammeter (VOM) | a multimeter that measures voltage, resistance, and current in milliamperes |
| variable resistor | a type of resistor where the resistance can be varied |
| watt (W) | a unit of power applied to electron flow or measure of the amount of power being used in the circuit; 1W=3.414Btu |
| series circuit | an electrical or piping circuit where all of the current or fluid flows through the entire circuit |
| short circuit | a circuit that does not have the correct measurable resistance: too much current flows and will overload the conductors |
| open winding | the condition that exists when there is a break and no continuity in an electric motor winding |
| ohm | a unit of measurement of electrical resistance to current flow |
| Ohm's law | a law involving electrical relationships discovered by Georg Ohm: E=IxR |
| resistor | an electrical or electronic component with a specific opposition to electron flow; it is used to create voltage drop or heat |
| resistance | the opposition to the flow of an electrical current or a fluid |
| fixed resistor | a nonadjustable resistor - the resistance cannot be changed |
| electrical power | is measured in watts: Watts=VoltsXAmperes (P=ExI) |
| potentiometer | an instrument that controls electrical current; it is a variable resistor with three terminals |
| rheostat | a variable resistor with two terminals |
| power | the rate at which work is done |
