0
What do you get when you divide true power in a circuit by the pararent power?
Wiki User
∙ 13y ago
Power factor is truepower divide by apparent power.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
True or false in a series circuit circuit current is the same throughout the circuit?
A series circuit only has one loop
What happens to reactive power in a circuit that has both inductance and capacitance?
Inductors are considered to be a load for reactive power, meaning that they will draw reactive power from the system. Capacitors are considered to be sourced of reactive power, they feed reactive power into the system. If you have a circuit that is at unity (balanced with inductors and capacitors) no reactive power will be drawn from the source. You will have unity power factor. If your circuit is more inductive than capacitive it will be drawing reactive power from the source. The opposite is also true for capacitors.
What is a VA in electric circuit?
VA or, more correctly, V.A, is the symbol for volt amperes, which is the unit of measurement for the apparent power of an alternating-current load.In A.C. circuits, true power (measured in watts) is a measure of the rate at which energy is supplied to the load, and reactive power (measured in reactive volt amperes) is a measure of the rate at which energy is alternately stored in the circuit's magnetic field and returned to the supply. Apparent power is the name given to the vector sum of true power and reactive power.
What is the relationship of the reactive volt-amperes to the total volt-amperes in a unity-power factor circuit?
If you have unity power factor, p.f.=1, then the real power P must equal the total power S. Therefore, there is no reactive power being used, Q=0.Alternative AnswerApparent power is the phasor (vector) sum of true power and reactive power: (apparent power)2 = (true power)2 x (reactive power)2
A circuit with 20 ohms of resistance and a current flow of 20 amps will use 6000 watts of power is this true?
P=I^2*R. No. 8,000 watts.
Name type of circuit load which the apparent power is greater than the active power?
these two types of circuit loads are the purely capacitive loads and purely inductive loadsAnother AnswerApparent power will be larger than true, or active, power in ANY circuit, other than a purely-resistive circuit or an R-L-C circuit at resonance.
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
Difference between watt and volt-amperes?
Watt is the unit of real power, which is the portion of power that does useful work. Volt-amperes is the unit of apparent power, which is the combination of real power and reactive power used by an electrical system. The difference between the two is that volt-amperes includes both real power and reactive power, while watt only measures real power.
True or false in a series circuit circuit current is the same throughout the circuit?
A series circuit only has one loop
The only device that develops true power in an electronic circuit is the inductor?
The resistor is the only component to develop true power in an ac circuit. The inductor and capacitors absorb energy on one half cycle and return it to the supply on the next. The resistive part of the inductor (wire coil if low frequency type) will develop true power due to its value of resistance ie it will get warm.
Which relationship is true of power factor?
Power factor is:the ratio of true power to apparent powerthe ratio of resistance to impedancethe ratio of the voltage across a circuit's resistive component to the supply voltagethe cosine of the phase angleetc.
Is a decision on a case in Alaska from the Ninth Circuit binding in Maryland in the Fourth Circuit?
true
What is the use of reactive power in electric circuitry?
'Reactive Power', which is expressed in reactive volt amperes, describes the rate at which energy is alternately stored (in a circuit's electric or magnetic field) and returned to the a.c. supply when the field collapses. It differs from true power, expressed in watts, because true power describes the rate at which energy is permanently lost by heat transfer due to the resistive component of the circuit.Reactive power doesn't 'have an use', per se, it's merely a way of quantifying the movement of energy in the reactive component of an a.c. circuit.The vector sum of a circuit's reactive power and its true power is called the apparent power of the circuit, expressed in volt amperes.
A circuit diagram shows the componens of a circuit and how they ae arranged. True or False.?
True!
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 happens to reactive power in a circuit that has both inductance and capacitance?
Inductors are considered to be a load for reactive power, meaning that they will draw reactive power from the system. Capacitors are considered to be sourced of reactive power, they feed reactive power into the system. If you have a circuit that is at unity (balanced with inductors and capacitors) no reactive power will be drawn from the source. You will have unity power factor. If your circuit is more inductive than capacitive it will be drawing reactive power from the source. The opposite is also true for capacitors.
How do you find true power With power factor and apparent power?
to put out the power fector you have to divided apparent power with true power.AnswerYou can determine the true power of any load using a wattmeter. To find the apparent power, you use a voltmeter to measure the supply voltage and an ammeter to measure the load current, and multiply the two readings together.If you then want to go on to find the power factor, then you divide the true power by the apparent power. If you want to find the reactive power you use the following equation:(reactive power)2 = (true power)2 x (apparent power)2
