Electronics Engineering

5 A

Q / t = I so 1200/4*60 = 5 A

There is no fundamental difference. The principal of the tarnsformer is always the same. It uses the principal that a magnetic feild can be formed by a coil. Like whise a changing magnetic field will generate a voltage in an electrical coil. The power of a transformer is defined by how much current the coil wires can carry. The thicker the wires the more current, and the lower the internal resistance. also the core of the transformer can be magnetically saturated which in return limits the power that can be transformed. The price of a tranformer is made up of labour, materials, interlectual propperty and depends on the location where it is made. In other words a large audio transformer made in the USA will be much more expensive than a small power supply transformer made in China The difference is that to manufacture of a 50 watts WE can afford to be eneficient a bit . But for a 5000w efficiency becomes a factor. Dissipating 5w is not the same as dissipating 500w. THIS IS ASUMING A 10% EFFICIENCY. And CHINA can biuld EVERY thing cheaper then the Usa Cheaper yes but not better. USA company design and subcontract these effort making money. They work for $0.75 an hour no benefits. we demand $10 with benefits and that is the story.

You need alternating current to operate a transformer. (It does not work with DC). Transformers are required to step up and down the voltage which is required to transport electric energy in an economic way. frequency's of 40 to 400 Hz work fairly well for transformers, and the choice with in this range must have been fairly arbitrairly. But one can imagine that the number 60 is inspired minutes of a clock, wher as the number 50 is inspired by the decimal number counting (a half of 100). By the way 60 Hz is slightly more efficient. A US transformer often has a hard life in Europe. For weight saving the frequency of installations in airplanes are historically 400Hz. Transformers can be much smaller this way.

I have att wireless, by adding anolog to my phone will i be able to see on my monthly statement or on line any incoming Bloked or restricted numbers that were received ???? what does anolog add to a cell phone?

Growth in computer technology, starting from valve computers till quantum computers

Dextroamp-amphet is a drug often prescibed for Attention Defecit Hyperactivity Disorder, or ADHD. It is extended release so can only be taken orally in pill form. I've seen it in doses ranging from 5 mg to 30 mg. It can be prescribed to children or adults.

A Cavity Combiner is a device which allows the outputs of two or more transmitters on different frequencies to be combined. It uses bandpass filters on each input to prevent the signals from the other transmitters from entering the output of a transmitter.

no

A TRIAC is a solid state AC switch. It has three terminals, MT1, MT2, and Gate. Load current passes through MT1 and MT2. In order for it to turn on, the Gate must be greater than MT1, in the same direction as MT2 is to MT1. One way to turn it on is to connect a resistor from MT2 to Gate. To turn it off, connect MT1 to gate.

Once the TRIAC is turned on in a line cycle, it stays on until the end of that line cycle. This behavior can be used to create a dimmer by delaying the point in the cycle where the Gate is triggered.

Note that the gate trigger voltage is not symmetrical. This can lead to a DC bias in the output. One way to resolve this is with a DIAC, which is like a TRIAC, but with the Gate missing - it will conduct in both directions at the same point - used in series with the Gate, it will help balance the TRIAC's symmetry.

The RFID is powered by its own antenna. When in the presence of a pulating magnetic field, the antenna generates a signal that can power up the RFID, causing it to generate its code on top of that field.

In short, no. However, Multisim is working on creating a cheap viewer for tablet computers, iPhones, and all other forms of screen-type media players which allows others to view Multisim documents without all of the memory required to change it.

Yes, and electrical current is the flow of electrons OR any other charged particle.

A Loss of power or the blanking signal is on to begin with.

capacitor acts as resistor because it has some resistace alos.

You can't. When they make those things, they fill the box with epoxy - a process called potting. It makes the computer more reliable, but also impossible to repair.

There is no such thing as anode rays. The cathode rays (aka electron beam) just travels from cathode to anode.

The concept of DVDs is not protected. The standards were developed by a consortium of companies now known as the DVD Forum.

An rcd is a device designed to limit duration of electrical shock by disconnecting the circuit when a fault is detected. An isolation transformer is a 1 to 1 (same voltage and current in and out) transformer that keeps one part of an electrical system physically unconnected to another part of the system. It does this by using the principle of a transformer to allow current flow, without actually connecting the load to the source wires.

YEP! EVERYTIME! 3 years on February 10th and it is just like it was yesterday! I am the luckiest girl in the world!

The selectivity or sharpness of series resonant circuit is measured by quality factor or Q factor.It is defined as the ratio of the voltage across the coil or capcitor to the applied voltage.In other words it refers to the sharpness of tuning at resonance.

Q = voltage across L or C ( in volts) / applied voltage ( in volts )

Q = 1/ R * ( L/C)^ 0.5

Q is just a mere number having values between 10 to 100 for normal frequencies.So it has no unit. Circuit with high Q values would respond to a very narrow frequency range and vice versa.Thus a circuit with high Q value is sharply tuned while a circuit with low Q value has a flat resonance.Q factor can be increased by having a coil of large inductance but of small ohmic resistance.

in electronics we use DC current but in elctrical equipment we use AC current

You may have difficulty doing that with both AM and FM because the antenna wavelenth is considerably out of range .Since you asked how to ELECTRONICALY cut down the signal...There are often trimmers on the tuning capacitor on AM and FM recievers that you could tweek but be careful because there are also frequency adjustments there as well . If you have an EXTERNAL antenna connections for AM & FM you can put attenuators on there , coaxial ones are available at R.S. but you can make one from resistors too. answer It may be a surprise to you but a simple voltage divider will reduce to any signal irregardless of signal length

Parasitic capacitances form across every depletion region there's also a capacitance between the conductive leads to the terminals. For simplicity they are usually just lumped to each of the terminals of the transistor. Gate, Drain, Source and Substrate. If substrate is shorted to source creating typical 3 terminal representation then that half of those parasitic capacitances combine and Css (source-substrate) = 0. Cgd Cgs Cds (primarily from drain to substrate, not drain to source)