Please enable JavaScript.
Coggle requires JavaScript to display documents.
Electrical Quantities - Coggle Diagram
Electrical Quantities
Definitions
Charge
Charge is a fundamental property of some particle. It is the cause of the electromagnetic force, and it is a basic aspect of describing electrical effects
Coulombs
Charge is measured in coulombs, C. One coulomb is the quantity of charge that passes a point in a conductor per second when one ampere of current is flowing in the conductor
Voltage
The electrical quantity Voltage is a measure of the amount of energy a component transfer per unit of charge passing through it
-
-
-
-
-
Ohm's Law
States that the current through a component is directly proportional to the voltage across it, providing the temperature remains the same.
Resistivity
Of a material is defined as the same value as the resistance between opposite faces of a cubic metre of the materials
-
Semiconductors
Have a lower resistivity than insulators, but higher than conductors. they usually only have small numbers of delocalised electrons that are free to conduct
Valence Band
The valance band is a range of energy ammounts that electrons in a solid material can have which keeps them close to one aprticular atom
Conduction Band
The conduction band is a range of energy ammounts that electrons in a solid material can have which delocalises them to move more freely though the sold
-
-