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Power factor is the cosine of the phase angle between voltage and current. In a purely resistive load, like a toaster, since the phase angle is zero, the power factor is 1. In a theoretically purely inductive or capacitive load, with the phase angle at 90 degrees, the power factor is 0. Power factor is also the ratio of apparent power versus true power, or watts versus volt-amperes.
Q factor is the quality factor. It is the reciprocal of band width. The lower your band width the more your q factor. In case of fine tuning actualy band width is adjusted to narrower changing the L of a coil and finaly the desired frequency is matched. Thus disturbance is reduced.
The Q factor is the voltage magnification at resonance divided by the supply voltage
ANSWER: Q Factor is a point with reference to loading
A coil of wire is an inductor. It's power factor should be very near zero. It will not be zero, since the wire has real resistance as well as inductance.
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How is the power factor of an Electrodynamometer type wattmeter improved?
Power Factor of an electrodynamometer can be improved by connecting a large resistor in series with the current coil.
Why current lagging in the coil?
The coil consists of inductance. Due to inductance the current lags the voltage. So, the power factor is lagging.
What is quality factor for choke coil?
the quality factor for choke coil is impedence divided by resistance in a given circuit
How would you measure power factor of the balanced three phase load by two wattmeter method?
Yes. The wattmeter's current coil will have to be connected into one of the line conductors, and its voltage coil between that same line conductor and the neutral point of the load. Connected this way, the wattmeter's voltage coil is measuring one of the three phase voltages (line-to-neutral voltage) while its current coil is measuring the corresponding phase current (for a 4-wire system, the phase current = line current). The power factor (cosine of the phase angle) is accounted for automatically within the wattmeter. So the wattmeter will measure the true power (in watts) of one phase. The total power, therefore, will be 3x the wattmeter reading -providing, of course, that the load is balanced (i.e. each phase is identical). WebRep currentVote noRating noWeight
What happens to the coil of wire when someone presses the switch?
If the coil is connected to a circuit and the switch is closed then, provided there is a power source, the coil will become energized.
What is the reciprocal of the power factor?
impedance/resistance
How to calculate power consumption by induction melting furnace?
simply by measuring the coil voltage, coil current & power factor.
How is the power factor of an Electrodynamometer type wattmeter improved?
Power Factor of an electrodynamometer can be improved by connecting a large resistor in series with the current coil.
Why in coil power factor is low?
A coil of wire acts as an inductor; it will have a very small resistance, and a relatively large inductance. Power factor is effectively the resistance divided by the impedance (made up of resistance and inductance), so the larger the inductance relative to the resistance, the lower the power factor will be.
Why current lagging in the coil?
The coil consists of inductance. Due to inductance the current lags the voltage. So, the power factor is lagging.
What is the power factor of choke coil?
All one can say without more information is that it is less than 1 and greater than zero.
What is Q factor of a coil?
The Q factor of a coil, sometimes called the unloaded Q factor, is the ratio of the energy stored in the coil to the energy dissipated in the resistance of the wire.
What is coil span factor and distribution factor?
coil span or coil pitch is defind as the distance mesured in terms of armature slots(or armature conductors) between two sides of a coil.
What is quality factor for choke coil?
the quality factor for choke coil is impedence divided by resistance in a given circuit
1990 Mitsubishi Valant Power transferrs to the coil but coil is not transferring power If the coil is getting power why is there no spark?
The coil is bad or the ignitions system is grounding out somewhere.
What are the disadvantages of leading power factor on generator supply system?
in case of leading power factor the air gap flux inside the alternator will increase which may cause over heating of the stator end coil and overhang portions.
How does a power mat for an Android device work?
The primary coil is in the power mat while the secondary coil is in the Android device. Power goes from the primary coil to the secondary coil, which allows the phone to charge.
