P=VI is correct for DC and instantaneous quantities, but not for complex AC magnitudes. Your question doesn't refer to the possibly different meanings. In fact, power factor is applied in electronics where appropriate.
I am an electrical and electronics engineer and I am here with one basic question if you guys appreciate it please reply to it in detail.
But in electronics where we have capacitors and inductors and resistors in awesome amount we don't talk about the power factor we simply calculate the power by the formula P=VI and not P=VIcos(phi).
So guys can you people tell me that why we don't consider the power factor term in the electronics field.
Electricity is sold based on the virtual power usage (VA) but the user only gets the benefit of the real power (W).
This applies at least to private consumers. Industrial consumers are possibly additionally charged for exceeding a certain power limit or sinking/sourcing reactive power beyond an previously agreed amount.The consumer is billed by the amount of electrical energy they use. They are not charged by how fast they consume that energy (power).
Power factor - the relation between the real power and reactive power...
real power is the power consumed when both Voltage and Current are constant in time domain
the reactive power the power consumed in capacitive or/and Inductive circuit , when you have variations of Current in time (i.e. inductors) and when you have variation of voltage in time (i.e. capacitors)...
In AC both current and voltage have variation in time
If a circuit with no resistance (i.e. LC circuit) is in resonance , you have a shorted circuit... .
Resuming...
Power factor - the relation between the real power and reactive power...
To be honest, I don't think this is true, instead of reactive power, you should use the apparent power (sinusoidal wave forms).
With the current electronic equipment, it is better to use the product of Vrms and Irms instead of apparent power, as this definition incorporates harmonics also.
Not sure if your question was adequately answered, but the convention is that the term "power factor (PF)" is generally only used with regard to mains power, since that is where it can have a significant effect on the power losses in the generating system.................
So guys can you people tell me that why we don't consider the power factor term in the electronics field.
So guys can you people tell me that why we don't consider the power factor term in the electronics field.
Thank you
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