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In Electrical engineering we have Cosine ø = a Power factor in an electrical circuit. What kind of a circuit is this? Explain this in Brief?

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Question added by Nazar Mohd. Karyar , Assistant Professor in College of Enginering, Kabul University , Ministry of Higher Education
Date Posted: 2015/04/02
Hazem Waddah
by Hazem Waddah , Senior Cyber Security Engineer , New Giza University

In any circuit that has a coil or capacitor there must be a power factor CoSine Φ. because Φ is the phase shift between voltage and current in a vector analysis and each of a coil or capacitor makes a difference between V & I. so any circuit must have a power factor that is less then1.

the only circuit that has no power factor (has a power factor that equals1) is:

1- circuit with only resistances. (no coil, no capacitor).

2- Resonance circuit (a circuit with inductance exactly equals capacitance as each eliminate the other).

 

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