Electrical Engineering

Voltage divided by total resistance will give the current. The resistance is simply the sum of all the individual resistances.

Low voltage lighting is famous for getting over heated. With the lower voltage more current flows to get the equivalent wattage output you would find in a 120 VAC circuit. For a similar wattage bulb in a 24 VAC system you draw 5 times the current and higher currents generate more heat.

The most common problems in low-voltage lighting systems are poor wire connections, too many lights on one transformer and wire that is too small for the load. It is usually recommended to re-tighten all connections in a low voltage system after a period of time.

the P63X series transformer differential relays are good funtional relays, but the software is different than the Micom PX2X and PX4X series relays. Not worse or better, just a different format. Functionally it provides adequate protection for your transformer with all the basic digital type elements. I prefer the P64X type relays since it has some advanced features, such as a unique CT failure setting that keeps the transformer protected from internal faults without mis-tripping, or disableing the restaint slope. It also accomodates up to 5 windings, I believe. Funtionally, both types are good solid protection, but good luck getting any support if your in the US. Just as they seemed to pick up the pace over the past few years, they have recently crawled back into a hole.

High voltage is used to transfer power over long distances ONLY because the gauge of the wire can be smaller. Power transfer is always most efficient at the operating voltage if the size of wire is not an issue.

Because the theoretical hearing limits of the human ear (in very young people who do not listen to loud music) is 20 Hertz to 20,000 Hertz. People with extremely good ears can hear musical tones as low as 20 Hz and as high as 20 kHz.

Stoves, heaters,incandescent light bulbs and other non-electronic, non-engine devices do not care about the frequency (Hz), so no conversion is required.

This is assuming that the voltage is the same. If a 120 V stove is to be used with 220 V electricity, a transformer would be required. (Although it might be cheaper to buy a new stove.)

Get dimmer switches that use very high frequency oscillators. These work by flashing the light a large number of times per second(impossible to see). When you dim the light, the period that the light is off for is increased which makes the light look as if it has been dimmed regularly, except without the wastage of power that comes from using a resistor.

I am an electrician at an aggregate company. We run 600V 3phase motors on our conveyor belts. When each conveyor feeds on to the next, the furthest conveyors often see voltage drop at the motor. We can usually fix the issue by upgrading the size of the cable to a larger than necessary guage.

In the first part of the question there will be only one wire in the conduit, in the second part of the question there will be two wires in the conduit.

Its schotlky diode. schotlky diode is metal semi conducter junction. It has fast switchng speed. The cutting voltage of schotlky diode is about 0.2 volts.

Highly positive

Root 3 x voltage x current x power factor = power in watt

lighting is usually on 15A breakers

receptacles on 20A

the probability is high that they are not on the same circuit.

if they are the same circuit the probability is high that there hasn't been an electrical inspection

You cannot obtain a two-phase supply from a three-phase system. What you are referring to is a 'split-phase' single-phase system, in which one phase of the transformer's delta secondary is centre tapped, with that tap then being grounded and providing the neutral connection; the outer ends of the same winding provide two line ('hot') connections, L1 and L2. The potential difference between L1 and L2 is then 240 V, whereas the potential difference between either L1 or L2 and the neutral is 120 V.

One way of doing this, although maybe not the easiest, would be to use a so-called embedded computer. There are a number of embedded computers made for hobbyists that are relatively inexpensive and easy to use. Although these computers cannot themselves control 12 volts DC, they can control transistors or relays which in turn can turn 12 volt DC on and off. Two examples of these computers are the Arduino and the computers made by Parallax.

The term is 'megger', not 'mega', and the answer is infinity.

The laminations reduce a core loss called Eddy Currents, which are set up in the core by the ever changing AC current.

i think its underneath the engine

The normal current carrying capacity is 6 amps per square millimeter without any cooling with forced cooling the number can be as high as 30 amps per square millimeter and for a motor application this means 5 times the energy density so a typical 1 or 2 KW/Kg energy density is now 5 to 10 KW/Kg in a continuous operation and peak values can be 10 times for a min or 20 times for a few seconds. The limiting factor is the thermal effects and how you deal with them the more efficient the heat removal the higher the allowed level of current.

There is (240 / 1344) = 179 milli volts per turn. The output voltage is 50 volts, so 50 / .179 = 280 turns on the secondary.

What kind of antenna? First you need to decide on what type; A really simple answer to this question is to cut a wire to the resonant 1/4 wavelength. This antenna would be 3 5/16 inches of wire.

increase voltage

A dimmer switch is used for lighting loads and not heating loads. The wattage rating on a dimmer switch is what the manufacturer recommends as the maximum load that the switch can handle. For example if you have ten 100 watt lamps, the total load wattage would be 1000 watts (10 x 100). Too much load for a 600 watt rated dimmer switch but not for a 1000 Watt rated dimmer switch. So you can see that the rating on a dimmer switch governs the maximum wattage load that can be connected in the circuit that is to be controlled.