Electronics Engineering

Yes.
yes they do

the whistle announced the trains's arrival at the station

You may find the answer in my new page:

http://www.welding-advisers.com/High-Frequency.html

that you may copy in your site, if you like it, provided you maintain a Reference Link to the source.

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Elia Levi

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In computing, a process is an instance of a computer program, consisting of one or more threads, that is being sequentially executed[1] by a computer system that has the ability to run several computer programs concurrently. A computer program itself is just a passive collection of instructions, while a process is the actual execution of those instructions. Several processes may be associated with the same program; for example, opening up several instances of the same program often means more than one process is being executed. In the computing world, processes are formally defined by the operating system (OS) running them and so may differ in detail from one OS to another. A single computer processor executes one or more (multiple) instructions at a time (per clock cycle), one after the other (this is a simplification; for the full story, see superscalar CPU architecture). To allow users to run several programs at once (e.g., so that processor time is not wasted waiting for input from a resource), single-processor computer systems can perform time-sharing. Time-sharing allows processes to switch between being executed and waiting (to continue) to be executed. In most cases this is done very rapidly, providing the illusion that several processes are executing 'at once'. (This is known as concurrency or multiprogramming.) Using more than one physical processor on a computer, permits true simultaneous execution of more than one stream of instructions from different processes, but time-sharing is still typically used to allow more than one process to run at a time. (Concurrency is the term generally used to refer to several independent processes sharing a single processor; simultaneously is used to refer to several processes, each with their own processor.) Different processes may share the same set of instructions in memory (to save storage), but this is not known to any one process. Each execution of the same set of instructions is known as an instance- a completely separate instantiation of the program.

Amps Ohm's law states the current is directly proportional to the applied emf (voltage) and inversely proportional to the resistance of the circuit.

inside my dreams

In the 20's there was only AM (short, medium and long wave), there were fewer commercials. Brroadcast hours were restricted and content was strictly scrutinized, balanced and mostly live. Now it's AM, FM and DAB 24/7 mostly pre-recorded and with little conscience.

The voltage tag on a motor says 120 or 220 volt and some motors have jumpers to wire it for either one. That is the supply line voltage. The motor knows how to use that. If the plate says three phase is required then consult your electic supply Company for a three phase supply line.

KVAR Kilovolt-Ampere Reactive KVAR Kilovolt-Ampere-Reactance {| ! Acronym ! Definition | Formular for calculation of kvar |}

Generally, yes. Sparks mean uncontrolled current flowing in places it shouldn't. Often, sparks are generated when something has shorted out. Short circuits generate a lot of unwanted current and a lot of unwanted heat that can melt components of the circuit. So if you're seeing sparks, it's probably already too late and you've fried something.

The only other sparks you may encounter are across switch contacts, particularly with an inductive load such as a motor. Inductive loads will continue pushing current through a circuit, even after it has been opened. This back-current can generate a voltage large enough to overcome the breakdown voltage of air and create an arc. This damages switch contacts. Arcing powerful enough can melt the contacts and/or simply override the switch. So, arcing is generally a bad sign and should be avoided. This is often easily fixed in DC circuits by placing a reverse-biased diode across the inductor or inductive load. Power factor correction will fix this in an AC circuit.

The process of connecting electrical components to a circuit board is

known as glueing, cementing, strapping, or bolting.

The process of connecting components electrically to points in the circuit is

known as soldering.

Real-world batteries do not have zero internal resistance. When one connects a load (resistance) to a battery, current begins to flow and the open-circuit potential is divided between the battery's internal resistance and the resistance of the load. Thus, one will measure a lower voltage at the battery terminals when a load is connected, compared to no-load conditions.

The name for an RC network is an oscillator.

AM and FM radio are analog

A parallel circuit.

Depending on where in the circuit the screw driver is placed it could be used as a switch or it could short the circuit out.

RC phase shift oscillators are used for musical instruments, oscillators, voice synthesis, and GPS units. They work at all audio frequencies.

it is a path in which magnitude and phase can be determine . it is used to determine the

THe Filter capacitor value depnds on the maximum current I of the Power supply , Switching frequency and the permissible ripple

C= (I * (1/2f ))/ ( V * %Ripple) - for a full wave rectifier

C= (I * (1/f ))/ ( V * %Ripple) - for a Half wave rectifier

Where

C= Capcitance in Farads

I = Current in Amps

f = Switching Frequency

V = Nominal voltage in this case 12 V

Reji J Thoppil

It becomes an or gate or, possibly, an and gate, depending on how you look at it..

gamma img processing,uv imaging,visible imaging,microband wave imaging etc etc

In watt watt watts

A powered audio mixer is used for combining, mixing, routing and changing the level, timbre or dynamics of audio signals. They can mix analog or digital signals depending on the mixer.

The power rating of a resistor is determined by its physical size. The greater its surface area, the better it can dissipate energy, so the higher its power rating. Knowing its power rating and its resistance will determine the maximum voltage that can be applied to it in order to ensure the resulting current doesn't cause the resistor to overheat. This can be determined by manipulating the equation, P = U2/R.

I cannot imagine a modern embedded system that is not built on a printed circuit board.