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

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

The electrical quantity Voltage is a measure of the amount of energy a component transfer per unit of charge passing through it

Ampere is the movement of one coulomb of charge per second

Is the amount of energy an electron gains by passing through a voltage of 1V

Is the opposition to the flow of electrical current

States that the current through a component is directly proportional to the voltage across it, providing the temperature remains the same.

Of a material is defined as the same value as the resistance between opposite faces of a cubic metre of the materials

The slow overall movement of the charges in a current

Have a lower resistivity than insulators, but higher than conductors. they usually only have small numbers of delocalised electrons that are free to conduct

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

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

The critical temperature for a material is that below which its resistivity instantly drops to zero