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At the end of the section, you should be able to:
At the end of the section, you should be able to:
Explain the terms real power, reactive power, apparent power, complex power and power factor.
Determine the real, reactive and apparent power of AC circuits.
Concept of complex power
Concept of complex power
Summary for individual circuit element
Summary for individual circuit element
Complex power can be represented as a vector as shown below. It is commonly known as the power triangle.Â
Complex power can be represented as a vector as shown below. It is commonly known as the power triangle.Â
Vector representation of complex power
Power triangle
The video uses "apparent power" as synonymous with "complex power". However, in our context, apparent power refers to the magnitude of the complex power vector.
Another example
Another example
Total AC power in circuit
Total AC power in circuit
Check your understanding 6
Check your understanding 6
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