Ohm's law states that the current passing through a conductor under constant temperature conditions is proportional to the potential difference across the conductor.
- Current is directly proportional to voltage and inversely proportional to resistance.
Current is the flow of electrons around a circuit.
- Its unit of measurement is amperes
- Its symbol is I
Electromotive force is the force which drives electrons around the circuit
- Potential difference is the change in energy levels across the load terminals.
Resistance is the opposition to the flow of electric current.
- Its symbol is R
- Its unit of measurement is the Greek letter omega
- As the voltage increases current also increases
|Tutorial 10||Introduction | Subpages | Previous and next links | Using Categories | Summary & FAQs|