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The power factor of a purely resistive circuit will be?
The power factor of a purely resistive circuit is 1.0.
What is the nature of power factor and its variation with firing angle when a single phase voltage controller feeds a resistive load?
With a pure resistive load the Power Factor should be 1.
What is the approximative power factor of an incandescent lamp?
Incandescent lamps are nearly pure resistive loads with a power factor of 1
If the voltage in a resistive is double the power will be?
In a resistive load circuit, the power = multiplication of voltage and Current. By increasing the voltage power will not be increased. Power is defined by the load as per its design. If the voltage is higher the load current will reduce. However running a load at double the rated voltage is not good for the device. Insulation may fail.
When using a resistive load bank to test a generator do you load it to the kW or the kVA?
When using a resistive load bank to test a generator, it does not matter if you load the generator to its kW or kVA rating, because those two numbers are the same when considering a resistive load. Power factor, which is the difference between true and apparent power, only comes into play when there is a reactive (inductive or capacitative) load.
The power factor of a purely resistive circuit will be?
The power factor of a purely resistive circuit is 1.0.
In a circuit with resistive and inductive load what happens to the power factor as the resistive load increases?
The PF will increase
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
What is the nature of power factor and its variation with firing angle when a single phase voltage controller feeds a resistive load?
With a pure resistive load the Power Factor should be 1.
When is a transformer closet to unity power factor?
When it supplies a resistive load.
Why natural trend to lagging power factor?
Power factor is the cosine of an AC circuit's phase angle, where the expression phase angle is the angle by which a load current lags or leads the supply voltage.Lagging phase angles and power factors occur in resistive-inductive circuits. Leading phase angles and power factors occur in resistive-capacitive circuits.Most industrial and commercial loads are combinations of heating (resistive) loads and motor (inductive) loads -in other words, resistive-inductive loads. Accordingly, lagging power factors tend to be more common than leading power factors.
Is motor supposed to consume any real power?
Motors do not 'consume' power, 'real' or otherwise, as power is simply the rate at which energy is consumed.So, the rate at which a motor converts electrical energy into mechanical energy does indeed represent the 'true power' of the machine. This is because the work done by the machine is due to the in-phase ('resistive') component of the machine's load current (equivalent to a purely-resistive load), whereas the quadrature component represents the reactive power of the machine.
How does cold heat work?
The COLD-HEAT soldering iron is simply a resistive soldering set in a small package. Search google for "resistive soldering".
How many watts in 1500VA?
Watts = Volts x Amps x Power Factor. To answer your question requires that the Power Factor be know. The Power Factor ranges from zero to one and is one for a pure resistive load. If your device is resistive the answer is 1500 watts.
Is a cf bulb a resistive load?
No, CFL bulbs have a power factor of 0.6-0.7.
What is the approximative power factor of an incandescent lamp?
Incandescent lamps are nearly pure resistive loads with a power factor of 1
If the voltage in a resistive is double the power will be?
In a resistive load circuit, the power = multiplication of voltage and Current. By increasing the voltage power will not be increased. Power is defined by the load as per its design. If the voltage is higher the load current will reduce. However running a load at double the rated voltage is not good for the device. Insulation may fail.
