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Brian Parkhill Patterson Pd. 2A. What is alternating current? An electric current in which the direction of flow of the electrons reverses periodically.

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Presentation on theme: "Brian Parkhill Patterson Pd. 2A. What is alternating current? An electric current in which the direction of flow of the electrons reverses periodically."— Presentation transcript:

1 Brian Parkhill Patterson Pd. 2A

2 What is alternating current? An electric current in which the direction of flow of the electrons reverses periodically having an average of zero, with positive and negative values.

3 What are the parts of alternating current? 1. Field 2. Armature 3. Prime mover 4. Rotor 5. Stator 6. Slip rings

4 How does alternating current work? AC voltage may be increased or decreased with a transformer. Using higher voltage leads to more efficient transmission of power.

5 Uses & why The main generators in nearly all electric power plants are AC generators. This is because a simple electromagnetic device called a transformer makes it easy to increase or decrease the voltage of alternating current.


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