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IMA Chapter 4 Terms
terms and definitions
27
Other
Not Applicable
02/15/2007

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Term
Alternating current
Definition
Current electricity that travels in one direction for part of a cycle and reverse for th remainder.
Term
Capacitor
Definition
Units that store electrical charge. They are also sometimes enlisted as filters to assist the process of deriving DC current from delivered AC signals.
Term
Conductor
Definition
Any material allowing for the smooth flow of charged paticles.
Term
Current
Definition
The flow of electrons between two points of an electical circuit.
Term
Current electricity
Definition
Created by the passage of charged particles on departing one atom for another.
Term
Direct Current
Definition
Current flowing in only one acknowledged direction.
Term
Electromagnet
Definition
Wires coiled to increase the power of the magnetic field.
Term
Electron
Definition
Exhibit a negative charge and orbit the nucleus of an atom.
Term
Ground
Definition
a point of the circuit that is set to the same voltage as physical ground.
Term
Impedence
Definition
Conceptual equivalent of resistance, which indicates the precise measure of electrical current a material will receive, and is also measured in ohms. Used in conjunction with AC.
Term
LED
Definition
Light Emitting Diode, shed light to signify current flow in ne particular direction and remain dark when in the opposite.
Term
Magnetism
Definition
Phenomena created by the transfer of electrons.
Term
Neutron
Definition
Found within the nucleus and do not carry a distinct charge therefore are classified as neutral.
Term
Ohm's Law
Definition
E= IxR or Z and P= IxE
Term
Power
Definition
Measure of the rate at which the energy in a system is expended in performing work.
Term
Proton
Definition
Located within the nucleus of an atom and displays a positive charge.
Term
Resistance
Definition
Indicates the precise measure of electical current a material will receive. Used in conjunction to DC.
Term
Resistor
Definition
Components that confer the circuit's resistance. Can be fixed or variable.
Term
RMS
Definition
Root-Mean-Square
Term
Schematic
Definition
Blueprint representation of electricity's course through a plotted circuit.
Term
Single Phase Power
Definition
Common 120-volt outlet found in US homes, one sine wave of AC travels these channels, oscillating from levels of -170 to 170 volts.
Term
Static Electricity
Definition
Present when an imbalance of positive and negative particles exists between two forms of matter.
Term
Three phase power
Definition
Electricity delivered to industrial sectors. Offers higher voltage or current capacities depending on its wiring.
Term
Three wire single phase
Definition
arrangment offering two hot connections and one ground.
Term
Transformer
Definition
Transform voltage by steppng AC current either up or down.
Term
Transistor
Definition
Provide a number of functions in electronic circuits including amplifying signals and acting as toggle switches in communication with other devices.
Term
Voltage
Definition
The different pressure existing between two points, which would be capable of receiving electical current should the points be assimilated into an electrical circuit.
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