Unit Definitions
& Components
Volt Practical unit
of electromotive force. Potential
different between positive and
negative ions.
Amps/Amperes Unit of current. The current flow of electric current.
Ohms Ω Unit
of resistance.
Watt The
unit of 'power' in circuit. (Needs volts and amps)
Farad Unit
of capacitance.
Hertz Unit
of current.
Components
Conductor Material
forming path for the flow of current.
Insulator Material
that will not readily conduct electricity.
Generally used to 'insulate' conductors (wires) to stop from shorting
circuits.
Negative charge Electron
Positive charge Proton
Semi-conductor Materials
that act as conductors or insulators depending on temperature, physical or electrical
conditions. Generally used in cars as
sensors eg. temperature
sensor.
Electron current flow The
flow of current from negative to positive.
Conventional current The
flow of current from positive to negative.
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