Electrical Engineering

First we need to know what is power factor ? it's cosine of angle between the current and voltage at that point where we wish to measure it. so power factor of "1" means the angle between the voltage and current is 0 degree. It means literally that the current and voltage is in the same phase.

Yes. GFCI receptacles do not rely on a ground conductor to work. They sense any difference between current flowing in the hot wire and current returning in the neutral wire. Under normal circumstances, these two currents will be exactly the same. If there is a difference, then some of the current is flowing from the hot to somewhere else, possibly through a person to ground. This causes the GFCI to trip. The National Electric code even permits an old 2-wire receptacle with no ground wire to be replaced with a GFCI 3-prong receptacle. No ground wire is used, and the GFCI must be labeled "No Equipment Ground". See NEC Article 406.3(D)(3)(b) and (c). This is the only legal way to install a 3-prong receptacle in place of a 2-prong without running a new ground wire.

The choke, or constriction for a shotgun acts to force the pellet cluster into a smaller size. This keeps the pattern tighter for a farther distance to concentrate the shot for a cleaner kill. The shooter chooses the amount of choke depending on what he is hunting and how far he is willing to shoot. If he intends to shoot pheasant at 50 yards he will need a tighter pattern than shooting rabbits at 20 yards. Remember: if you shoot a tight pattern you must be more accurate in your sighting to hit the target.

To set an adjustable choke, the shooter uses a "pattern board" which is a large piece of paper stretched out and marked with coordinates that the shooter uses to determine how many pellets land within a certain number of inches of the center of the pattern. The shooter picks his distance, say 25 yards, shoots the paper, and counts the holes. This lets him know the shot density and whether it is suitable for his intended hunting. The shooter then adjusts the choke for his intended game.

all electricity is natural, due to the fact that electricity is a force of nature. you may be referring to "voltage" which is the difference of charge we sometimes create in order to get work out of electricity, a "synthetic" example would be the 110V at an outlet i suppose, while a natural example would be lightning, or the shock you get from touching a door knob after dragging your feet on carpet.

6 Volts.

Most commonly the word "generator" is used to refer to a machine that produces electricity, an electrical generator. However, a generator can be anything that creates anything else, since to generate means to create.

What is a fitness circuit? a fitness circuit is were it makes u fit and healthy. Is a circuit breaker a circuit? No, it is an inherent part of the circuit. In simple terms and condtion

A: IN transistors it is very important since they themselves are voltage amplifiers

To 'damp' vibrations in the conductors.

You need to provide values of resistor and inductor etc to find the phase angle.

If it's a pure inductor, no power consumption. However it must be wound using unobtanium wire which has zero resistance, and the core must be vacuum. Air is nearly lossless.

RMS stands for "Root of the Means Squared", and is a mathematical method of defining the "operating" voltage of a sine wave power source.

Typical home lighting and outlet voltage presently is 120 VAC (volts alternating current), 60 Hz. (Hertz, formerly referred to as "cycles per second".)

But the PEAK voltage is the absolute maximum voltage at the "peak" of each sine wave of voltage. Mathematically, the "Peak" voltage is 1.414 (which is the square root of the number 2) times the RMS voltage, and conversely, the RMS voltage is 0.707 times the PEAK voltage.

the difference between a voltage converter to a voltage regulator,is that a voltage converter,converts or changing the desired voltage to be used while the voltage regulator,regulates the input of the voltage amount not to excess to its inputs.

To drain the water that is in the pipe or spout..

Alarm Clock

Hair Dryer

Disco Ball

A lot of things.

what is the inverse time of the theraml overload?

Arc Length depends on the secondary voltage of furnace transformer. Thumb rule is for 500V the Arc length would be 500mm(20").

The purpose of arc length is to give maximum power to the melt, without arc flare. -

When it is connected to resistor

This is the designation for a type of flexible cord ("junior hard service cord") for electrical uses up to 300 volts, having thermoplastic insulation of the conductors and a thermoplastic outer covering. The "W" designates compliance with requirements for outdoor use (water and weather resistant), suitable for use in wet locations. There may also be markings that indicate resistance to sunlight (UV) deterioration.

Approved cords should have durable markings every 24 inches showing the type, size of conductors and number of conductors.


The permitted amps through an SJTW depends upon whether it has 2 current-carrying conductors or three or more, and the size of the conductors. An 18AWG/2 is 10A, and 14AWG/3 is 15A, for example (at ambient T of 86F, 30C).


NEC Table 400.4, rule 400.6

Actually no. Energy equals Planck's constant times frequency.

to limit the induced current in the rotor to assist with high inertia loads

A ground fault circuit interrupter is the device used to de-energize the circuit.

The conversion factor is 1.34. So: .78 kW x 1.34 = 1.0452 hp

Represents the number of coil turns on the primary side of the transformer.