# User:Wrouse/My sandbox

## OHM'S LAW

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

Current is the flow of electrons around a circuit.

• Its unit of measurement is amperes
• Its symbol is I

#### ELECTROMOTIVE FORCE

Electromotive force is the force which drives electrons around the circuit

Potential difference is the change in energy levels across the load terminals.
##### RESISTANCE

Resistance is the opposition to the flow of electric current.

1. Its symbol is R
2. Its unit of measurement is the Greek letter omega

check this wiki website or 

Objectives
 Students should be able to apply Ohm's to series circuits parallel circuits

Activity
 Solve the following circuits

# Assignment

 Explain by using examples why current is directly proportional to voltage Tip:
• As the voltage increases current also increases