How to Convert 2.1 speakers to 5.1?
Your best bet is to run through an A/V receiver. They generally have methods to turn 2 channels into 5, but if that is not possible, connect the 2 channels and listen through whatever of the speakers you choose, but it will not be all of them :(
Why did Samuel Morse invent the telegraph?
Samuel Mores did not exactly invent, but came up with the idea and was later named after him for he used a early version for the telegraph which he did invent
What is the name of a safety device that will shut off flow of electricity?
Devices used to open an electrical circuit are called OCPD's. (overcurrent protection devices) The most common are circuit breakers and fuses. In commercial motor starters they often employ another OCPD called a "heater" (UK thermal fuse) which is a metal strip which melts like the element in a small fuse when too much current (amps) go through it. They devices are in the circuit primarily to protect the wiring and devices they power. Circuit breakers such as in your home panel do protect you from a "shorted" circuit. Another safety and most common in residences are GFCI's or ground fault circuit interrupters (UK ELCB, Earth Leakage Circuit Breaker or RCD, Residual Current Detector) which come as both a receptacle (female plug) or as a circuit breaker.
You get static shock when the air is dry, mostly during the winter. Electrical currents run through your fingers, and when you touch something, all the current rush to the thing you touched, causing a shock.
Static current developed in any device can cause a static shock. Static current if discharged by direct human touch can cause damage to electronic devices.
Outlook Connector is an add-on for the Outlook mail application that lets users connect their hotmail account to their Outlook program, allowing them to control their hotmail from Outlook.
What are copper losses in a transformer?
Copper losses are purely voltage-drop losses (I squared R) caused by the resistance of the windings, as opposed to hysteresis losses and eddy current losses (so-called iron losses), which are magnetic in nature. They are called copper losses whether the winding conductors are made of copper or not, by the way.
What is red blue and black wires for?
Answer for USA, Canada and countries running a 60 Hz supply service.
Depending on the insulation, these wires can be used for anything except grounds and neutrals. In commercial and industrial settings, black/red/blue are colors usually used for 120/208v 3-phase systems. This is an industry standard, not a code requirement. In homes, black and red are used for each leg of the single phase 120/240v system. But again, this is not a code requirement.
<><><>
As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.
Before you do any work yourself,
on electrical circuits, equipment or appliances,
always use a test meter to ensure the circuit is, in fact, de-energized.
Why does one end of the battery have a negative symbol on it?
because batteries works on the principle of electron charge and an electron can have either a more positive or negative charge but the electron wants to have an equal amount of pos. and neg. charge so when batteries are simply they pull the positive charge to one side and negative to the other side and when they come together with a conductor(wire) it creates a current which does the "work" for you. The voltage of the battery pretty much lets you know how strongly the battery wants to create equality between each side thus more current.
What is Fast packet switching?
fast packet switching: A packet switching technique that increases the throughput by eliminating overhead. Note 1: Overhead reduction is accomplished by allocating flow control and error correction functions to either the user applications or the network nodes that interface with the user. Note 2: Cell relay and frame relay are two implementations of fast packet switching.
Example of a parallel circuit?
A parallel circuit is used in household wiring. It allows a current to split in half and gives devices just the amount of power they need. This method of wiring is useful for fixing a circuit because the power can flow around the problem and you can fix it.
What is cable size for a 7.5kw 3 phase induction motor 70 meter run for cable 415v?
Current is about 18 amps per phase. Allowing for power factor and startup, I'd size the wire for 40 amps per phase, which is #5 wire. This wire has a resistance of 0.39 ohm per 1000 ft, which is 0.39 ohms per 305 meter, or 0.09 ohms per 70 meter.
At 40 amps, there is a voltage drop on the wire of 40*.09 or 3.6 volts, less than 1% loss, so that is OK.
Use 4 conductor #5 copper wire insulated for 480 volts.
<<>>
A #12 copper conductor will limit the voltage drop to 3% or less when supplying 13 amps for 230 feet on a 415 volt system.
How do current clamp on amp meters work?
clamp is an electrical device having two jaws which open to allow clamping around an electrical conductor. This allows properties of the electric current in the conductor to be measured, without having to make physical contact with it, or to disconnect it for insertion through the probe.
An underground electrical distribution system is most likely to be found?
Where an underground electrical distribution system is most likely to be found is underground.
How does an electric doorbell work?
when the doorbell button is pressed it closes a circuit and energizes the coil of a solenoid. The solenoid coil then causes a hammer to shoot out from the coil and strike a the doorbell chime.
How thin is the thinnest phone?
The slimmest phone would be the Card Mobile phone called the Real Card Phone, which is credit-card sized at only 5.9 mm in thickness, which is less that a quarter-inch thick. Also thin yet packed with multimedia features is the Samsung 'Trace Phone' which is about a quarter inch thick and can fit into a coin pocket. Information from www.3gphones1.com
What is inside a six volt lantern battery?
I took a dead one apart and found that my Dorcy Mastercell Heavy Duty 6-volt cell contains four cells wired together. Each cell is the circumference of a D-cell, but is longer--the length of the 6-volt casing.
I have read that Duracell 6-volts contain four regular Duracell D-cells wired together with a styrofoam block to fill the space in the bottom (what a scam). I have also read that Energizer NIMH rechargeable D-cells contain a AA battery and filler--again, what a scam. It is said that you can figure out what you're getting by understanding the mAh ratings on the package--but who understands that stuff?
How much does electricity cost retail per kilowatt?
The cost of a kWh depends on several things. a) do you have very large peak loads, b) what is your annual demand, c) what is the cost of the supply lines to your site. And so on.
In Wanaka, New Zealand, a domestic consumer using less than 8 000 kWh per year, we pay NZ 28c per kWh for 'on-demand' power, and 21c per kWh for 'off-peak controlled' power (Hot water heating).
If you have large peak demands, then you'll put great demand on the lines and supply system, but which is going to be idle for most of the time. But it has to be paid for.
What are the formula of power in electricity?
The big power Formulas: Formula 1 - Electrical (electric) power equation: Power P = I × V = R × I2 = V2 ⁄ R
where power P is in watts, voltage V is in volts and current I is in amperes (DC).
If there is AC, look also at the power factor PF = cos φ and φ = power factor angle
(phase angle) between voltage and amperage. Formula 2 - Mechanical (mechanic) power equation: Power P = E ⁄ t = W ⁄ t
where power P is in watts, energy E is in joules, and time t is in seconds. 1 W = 1 J/s Scroll down to related links and look at "Formulas and calculations - Electricity and Electric Charge".
Types and kinds of technology?
In modern times there are a number of different types of technologies emerging; these are centered around ways we live and how we make our lives more comfortable. For example:
1. Assistive technology is technology used by individuals with disabilities in order to perform functions that might otherwise be difficult or impossible
2. Medical technology refers to the diagnostic or therapeutic application of science and technology to improve the management of health conditions
3. Information technology refers to both the hardware and software that are used to store information
4. Communications technology
5. Transport technology
6. Defense technology
How do electro pneumatic contactors work?
A contactor is an electrically controlled switch (relay) used for switching a power circuit. an electro pneumatic contactor is similar to the above except it uses a pneumatic signal to initiate the switching of the electric power circuit. an electro magnetic contactor is a contactor driven by an electric control signal. It us usually just called a contactor.
You do this: multiply the mass X Banana divided by chocolate to the power of 2 X M95 Barret 50cal shooting a watermelon 15 miles away in midair while doing a backflip of a diving board into a pool of jelly in speedo.
Which is the positive wire between solid black and black with white stripe?
White is neutral in home wiring. Red is sometimes used in 3-way switches and dimmer applications, so it is likely red is hot in your application if it pertains to home wiring. The term positive would just apply to DC wiring since AC goes positive and negative. For example your car battery has Red as Positive and Black as Negative.
What is a material that electricity can flow through called?
Electricity can pass through a wide verity of material that are conductive.
Will pencil lead conduct electricity?
Yes, Pencil Lead does conduct Electricity. Copper, Gold and Silver though are the best conductors.
What converts electricity to mechanical power?