Current Electricity – Notes
Electricity – Current Electricity – Basics
Electricity current is uniform flow of charges in a particular direction.
The rate of flow of charge o uniform motion of electrons:
(I = )
Potential difference is the work done in moving a unit charge between two points in an electric field against the direction of force:
(v = )
Electric resistance is the opposition to the flow of electrons by the conductor.
Factors affecting electric resistance are:
- The length of the conductor
- The cross sectional area of the conductor
- The resistivity of conductor material
- The temperature of the conductor