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Week 4 

AC (alternating current)

Student Learning Objectives
  • Describe how alternating current is produced
  • Demonstrate a sine wave 
  • Determine the frequency, period, and amplitude of a sine wave
  • Calculate and explain what is meant by the RMS value of a sine wave
  • List multiple advantages and disadvantages of AC


Vocabulary

Hertz-is a measurement of frequency (defined as one cycle per second)
Symbol-HZ
Not critically important, but you should know what it is.
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What are the different ways that electricity can be produced?

​Why do we use both AC and DC? 
​
Ohm's Law and Transformers
At higher voltages, the same power could be transmitted at much lower current, which meant less power lost due to resistance in the wires. As a result, large power plants could be located many miles away and service a greater number of people and buildings.
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  • Home
    • House wiring
    • Small Gas Engines II
    • Small Gas Engines >
      • Purchase Order
      • Engine spec
      • Final project
    • Auto Tech I >
      • Diagnostics
  • Standards
  • Survey online
  • GMAW in espanol
  • Diagnostic survey
  • Career Survey