Electric Current.

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Presentation transcript:

Electric Current

Electric Current v _____ ____

Water Flow Current Water pressure __________ Amount of water flowing current Pipes carrying water to the house Live wire (black) Drain carries water away from house Neutral wire (white)

The Electric Battery A BATTERY is a source of electric energy. A simple battery contains two different metals, called ELECTRODES, and a solution called the ________________

___ ____ ______ Has a paste instead of a liquid inside

Electric Current Electric current – charges that are moving from one place to another ____________ ___ _____________

Resistance Tries to stop or slow the electric charges in a circuit. Resistance is measured in ______ ().

Resistors Resistors are used to ________ the amount of _________ flowing in a circuit

Resistors Symbol on a schematic diagram The colours on a resistor ____________ its value.

Alternating Current In a ___________ CURRENT (DC) circuit the current flows in one direction only. Ex. Batteries In an ___________________ CURRENT (AC) circuit the direction of current flow through the circuit changes. Ex. Electric wall outlet

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