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Current Electricity
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Electric Current
A flow of electric charges
To make a current, you need a path to carry it.
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Circuit
The path that an electric current flows through.
A simple circuit needs a power source, connectors, and a load (what it is giving power to)
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Current Electricity
The flow of electrical charges through a circuit
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Open and Closed Circuit
Open Circuit-electric current can flow through it
Closed circuit-current cannot flow through it.
Switches control if the circuit is open or closed.
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Types of Circuits
Series Circuits: electric current flows in the same direction along a singe path. The same current flows through ALL loads. If one part is removed-the circuit is open!
Parallel Circuit: current flows through more than one path or branch. IF you removed one load, the other loads will still work.
Most homes use parallel circuits.
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Conductors:
materials that allow electricity to flow through them easily.
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Insulators:
materials that DO NOT allow electricity to flow through them easily.
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Today’s Experiment:
What objects are good conductors of electricity?
What objects are insulators?
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