Electrical Engineering

There is no fixed resistance for a "closed circuit." I get the feeling you are asking about a security system and are not giving us all the details. == Certainly it's only zero in theoretical circuits. In real life, it's a "low" or "minimal" resistance.

this is below the point where components are destroyed

the easy way is to submit a couple dozen samples to ul laboratories

they have equipment that simulates the surge currents

they merely destroy a dozen see what the current was to destroy them

then average it deduct 10% and see if the remaining samples arent destroyed

The primary disadvantage of this circuit is that stray capacitances are much more significant than with the Dickson multiplier and account for the larger part of the losses in this circuit

The two largest selling types of memory integrated circuits are DRAMs and SRAMs.

Its not only about rotor, Core losses of every machine which has core are fixed and only vary with Voltage variation.

these two pins are biasing pins of ICs.

Conversion of cable diameter to circle cross-sectional area and vice versa. Scroll down to related links and look at "Conversion of cable diameter to circle cross-sectional area".

Refer to the "2008 Wind Technologies Market Report", issued by the Department of Energy in July 2009 (http://eetd.lbl.gov/EA/emp/reports/2008-wind-technologies.pdf). $1.3M per megawatt is right on (for 2008 data).

Paul

Hi:

I asked the company Vestas this question. They are number two in the world in producing wind turbines. They told me the answer is based on a thousand factors but that the general rule of thumb is that wind turbines cost 1.3 to 1.5 million per megawatt.

Cheers,

Ben

Low Voltage three Phase Single Speed Three Phase Wye L1:T1,T7 L2:T2,T8 L3:T3,T9 Join Wires T4,T5,T6 Three phase Delta L1: T1,T6,T7 L2:T2,T4,T8 L3:T3,T5,T9 High Voltage L1:T1 L2:T2 L3:T3 Join T4and T7, T5 and T8, T6 and T9

Current members of Lacuna Coil are Cristina Scabbia (singer), Andrea Ferro, Marco Coti Zelati, Cristiano Migliore, Cristiano Mozzati and Marco Biazzi.

In one way that is like asking why clothes or garden tools, buildings, musical instruments, cars, trucks, planes, ships, etc. have different shapes and sizes... The reason is because the diverse uses to which they are applied require them to be made in different shapes and sizes.

But it is not only as simple as that: some electrical items can become very dangerous indeed - to people, animals, vehicles, buildings, etc - if they are hooked-up to their electrical supplies incorrectly. Some electrical items can catch on fire or explode if they are connected to the wrong voltage or the wrong type of electrical supply. It makes no difference if some wrong connections were not done deliberately but "just by accident", the end result would be the same: disaster.

So the idea of using different shapes and sizes of connectors to help people avoid making bad hook-ups and having accidents was invented by the same brilliant engineers who discovered how to make batteries, generators, light bulbs, electric motors, computers and all the other wonderful electrical things many of us now take for granted in our everyday lives.

By inventing different shapes and sizes of connectors an excellent and yet very simple way was found for us all - even if we know nothing about electricity - to make the right connections easily "first time". That same clever invention makes it much more difficult for us to make any dangerous bad hook-ups "just by accident" because the plugs or connectors for a particular appliance or electrical device will only fit into the correctly-matching sockets or connectors which are intended for use with that particular item, and won't fit into any sockets or connectors which do not match.

A further very real benefit of having many different shapes and sizes - and colors - of connectors, plugs and sockets is that, for any given electrical appliance or system of components - such as the many different connections that are needed inside a house - for phones, television aerials, cable services, computers and their peripherals (keyboard, mouse, monitor, printer, scanner, modem, speakers), small electrical appliances, large electrical appliances, etc. - it is very easy for anyone to see exactly which wire or cable needs to go into which outlet without always having to study a User Guide first. When there are different shapes and sizes of connectors you don't even have to be trained how to use complicated electrical wiring diagrams and test equipment.

I believe it has to do with the windings in the motor. When wired to 120V, half the motor has a positive polarity and the other half has a negative polarity. Then as the current alternates (60 hertz AC) the polarity flips, the magnetic poles oppose each other and cause the motor to spin. I think in a 240v winding the motor is in quadrants instead of halves. So it would be like have 4 magnets opposing each other instead of two and you have double the voltage. The calculation for electrical power (which is converted to torque) is voltage-squared divided by the resistance. If the voltage is doubled, the power is increase by 2-squared, or quadrupled. In reality, the torque produced will be slightly less than 4 times more (because some of the power is lost as heat), but it should be pretty close. -- The second answer is the best answer. The first answer could suggest several things, depending on how you read it. Nonetheless, they are all incorrect. The power calculation (in Watts) is really all you need to do. Voltage squared, divided by resistance. Resistance stays the same, so power quadruples when voltage doubles. If the motor spins at the same speed, then torque should effectively be linear with power, aside from the extra heat created in the components from the higher current.

Hey John==On the intake close to the EGR there is a solonoid that has wires and vac lines going to it. Make sure the wires are connected and not shorted. GoodluckJoe

Because Alternating Current is the standard form of electricity available, devices which operate on Direct Current, such as a Liquid Crystal Display, have a converter, which converts the AC into the appropriate voltage of DC.

PUT A MULTIPLIER RESISTOR IN SERIES WITH THE METER AND SOURCE. RESEARCH 'METER SHUNTS AND MULTIPLIER CIRCUITS', IT TAKES ONLY ONE SMALL RESISTOR.....(OR IF YOU HAVE EXTRA METERS, PUT TWO OF THEM IN SERIES WITH THE LOAD AND SOURCE; THEN ADD THE TWO METER READINGS.)

A zero-slot LAN is a local-area network (LAN) that uses existing serial and/or parallel communication ports on the computers in the network instead of requiring network interface cards (NICs) that would occupy an expansion slot.

Advantages

It leads to transmitting between computers over a serial or parallel port, thus freeing up an expansion slot normally used by LAN cards (NICs).

Disadvantages

Zero-slot LANs are typically slower than LANS that use NICs and are limited to two or three network nodes.

The Doubly Fed Indcution Generator (DFIG) is a very popular machine, since the output of the stator terminals is already at 60hz (no change in voltaje or frequency necessary).

The matrix converter is used in the rotor side (wound rotor) in order to control the frequency and voltage magnitud to make the induction machine generate power at a wide range of speeds...

remove three 0s will do the trick

Electricity is a flow of current (moving charges) and has to flow into and out of a circuit or other object. In automotive applications, the metal body of the car is often used as part of the negative conduit. In grounded circuits for alternating current, any connection to the ground can provide a path (short circuit, electric shock). In lightning, any object in the path of current flow, either upward or downward, may carry the flow of high-voltage charges.

Alternating current varies in magnitude, and reverses direction every half-cycle. When the current is drifting in one direction we allocate it a 'positive' direction; when it reverses direction we allocate it a 'negative' direction. So the positive half-cycle refers to its variation in current during its forward or positive direction and the negative half-cycle refers to its variation in current during its reverse or negative direction.

Number of bulbs . . . Load voltage . . . Load current

0 . . . . . . . . . . 120 V . . . . . . . . 0 A.

1 . . . . . . . . . . 117.65 V .. . . . . 23.53 A.

2 . . . . . . . . . . 115.38 . . . . . . . 46.15

3 . . . . . . . . . . 113.21 . . . . . . . 67.92

4 . . . . . . . . . . 111.11 . . . . . . . 88.88

5 . . . . . . . . . . 109.09 . . . . . . . 109.09

If you put two 12 V batteries in series you get 24 V. Connect the positive of battery 1 to the negative of battery 2. Then you have 24 V between negative of battery 1 and positive of battery 2.