Saturday, February 6, 2010
Electricity
Electric Current
-Flow of electricity is due to the movements of electric charges.
Circuit symbols:
Series and Parallel circuits
-Two main types of circuits: Series and Parallel.
Measuring Current
- A form of energy.

-Flow of electricity is due to the movements of electric charges.
-Two types of charges: Positive (+) and Negative (-)
-When electric charges move, an electric current is formed (I).
-Is the rate of flow of electrical charges.
-The path that current flows is known as a circuit.
-Measured by the amount of charges moving past any point in the circuit per second.
-S.I unit is amphere (A)
Electric Circuits

-Two main types of circuits: Series and Parallel.

-Ammeter is used to measure current.
-Ammeter must be connected in series with the circuit. 

4:39 PM