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The power factor of an RLC circuit under resonance is 1.
Explaination:-
Power factor of an RLC circiut is given by=R/|Z|
For a resonant circiut,|Z|=R (Because reactive components are zero in resonance)
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. .Power factor=R/R=1.
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∙ 12y ago
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Is a power factor of 1 possible?
No, as 100% efficiency is not possible.AnswerYes, it occurs at resonance. That is, when a circuit's inductive reactance is exactly equal to its capacitive reactance. This can be achieved by adjusting the frequency of the supply until resonance is achieved. Incidentally, power factor has nothing to do with 'efficiency'.
What is power factor of an R L series circuit?
Power factor in any circuit is the ratio of the load's true power to its apparent power. It's also the cosine of the phase angle. In L-R circuits, it's described as a 'lagging power factor', because the load current lags the supply voltage.
Power factor for pure resistive circuit?
ratio between true power and apparent power is called the power factor for a circuit Power factor =true power/apparent power also we conclude PF=power dissipated / actual power in pure resistive circuit if total resistance is made zero power factor will be zero
Why low power factor wattmeter is used for open circuit test of transformer?
For open circuit test of transformer, the secondary is open circuit and the circuit impedance is largely inductive due to the core impedance having high L as compared to R. hence the power factor is reduced, thus , we use low power factor wattmeters.
Why is the total power equals the sum of the individual values of power in a series circuit or a parallel circuit is used?
The total power equals the sum of the individual powers because power is the rate at which energy is supplied. Whether you have a series or parallel circuit, the total power comes from the power source.
What is the power factor on a circuit in resonance?
You are presumably referring to an 'R-L-C' circuit. At resonance, the load current is in phase with the supply voltage and, so, the power factor is unity.
Find the conditioies RCL circuitn of resonance of a series circuit.?
At resonance,Xl=Xc subsituting the values we get resonant frequency and impedance Z=R it is high and power is max I2 R
When is the power factor of a motor 1?
When the circuit is purely resistive or in resonance, i.e. capacitive and inductive reactance cancels out.Power factor is the ratio of apparent power over true power, and is the cosine of the phase angle between voltage and current.
Condition of resonance in RLC circuit?
XL=Xc is the resonance condition for an RLC circuit
Under what condition will the power factor of a series R-L circuit approach unity?
When the Inductor's value equals Zero, then the Power Factor reaches 1. Conversly, when the Resistance equals 0, the Power Factor becomes Zero. The Power Factor for a Series R-L Circuit is equal to R / sqrt (R^2 + (w*L)^2 )
Is a power factor of 1 possible?
No, as 100% efficiency is not possible.AnswerYes, it occurs at resonance. That is, when a circuit's inductive reactance is exactly equal to its capacitive reactance. This can be achieved by adjusting the frequency of the supply until resonance is achieved. Incidentally, power factor has nothing to do with 'efficiency'.
What will b the power factor of a series circut when r is made zero?
The power factor never depends on the resistance of a circuit. It depends on the equivalent inductance and capacitance in the circuit, and on the frequency of the power supply, even if the resistance is zero.
What is power factor of an R L series circuit?
Power factor in any circuit is the ratio of the load's true power to its apparent power. It's also the cosine of the phase angle. In L-R circuits, it's described as a 'lagging power factor', because the load current lags the supply voltage.
What is power factor of resistor?
A resistor doesn't have a power factor. However, if a circuit is pure resistance in nature the power factor will be one when a voltage is applied and a current flows in the circuit. The power factor is a measure of the relative phases of the current and voltage in a circuit.
The power factor of a purely resistive circuit will be?
The power factor of a purely resistive circuit is 1.0.
What is the power factor of a circuit?
power factor means kw/kva
What is power factor of a circuit?
power factor means kw/kva
