Electronics Engineering

A bus is a communication path way connectign 2 or more devices.

name as many scalar fields and vector fields as u can?

Usually associated with switching power supply when dormant to active the input impedance can change dramatically until-operating normally

Actually not all routers are stateless devices. There are stateful routers also. The definition depends on the IP filtering and routing algorithms used. Routers which have static IP filters and routing tables are of the stateless type. Routers with Static IP filters allow direct connections from the external network to hosts on the internal network and typically there is no authentication. More intelligent and secure routers with dynamic IP address and packet based filtering are known as stateful type. Stateful routers can also have application proxies or gateways. These have more overheads for processing packets passing through the routers. - Neeraj Sharma

A overflow is a condition in which a calculation produces a unit of data too large to be stored in the location alloted to it. An overlow cannot happen when two numbers of opposite sign are added. An overflow may occur in an addition of binary numbers if the augend and addend are both positive or negative.

No. the primary winding is called the primary; the secondary winding is called the secondary. These are both wrapped around the iron core of the transformer. The core helps magnetically link the primary and secondary, which causes the transformation of voltage and current from primary to secondary.

Resistance is used in characterizing silicon diodes, or any component for that matter, because the equivalent resistance in a certain condition tells you what the circuit will do in that condition.

It is true that a diode is not a resistor, but it has an equivalent resistance at each point on it operating curve. Let take three points, for example...

With one ampere of current, the forward voltage might be 0.68 volts. That corresponds, using Ohm's law, to a resistance of 0.68 ohms. With ten amperes of current, the forward voltage might be 1.15 volts. That corresponds to a resistance of 0.115 ohms. With 25 amperes of current, the forward voltage might be 1.7 voltage. That corresponds to a resistance of 0.068 ohms.

You can obtain the forward resistance curve from the manufacturer's data sheet. Even if there is only a voltage versus current curve, you can calculate resistance using Ohm's law.

You need to know the resistance curve in order to design the circuit that uses the diode. In high performance situations, such as in large power supplies, the resistance of the diode may well be critical, and would therefore be a factor in selecting which diode amongst several choices to choose.

Micro strip lines,Parallel strip lines,Coplanar strip lines,Shilded strip lines.

It depends on the draw of the compressor.

Yes, the electronics system on board ships ensure safe and efficient operations for an engineer.

Ie=Ic+Ib

In the course of sampling a signal to graph the parts of a repeating event on the display, the sampling must be done faster than the event you want to graph. If the sampling is done slower than the event then you will be displaying several parts of the event in a single dot on the display, highly inaccurate.

The signal sampling must be done fast enough to display the event in enough detail. The higher you set the scope frequency, the wider the event appears on the display, possibly losing the sides of the event if you go too high.

There actually isn't any advantage or disadvantages of using a balanced verse unbalanced transmission line. Selection of transmission line is based upon several factors: 1) required transmission line impedance between the source and the receiver (load), 2) application of the transmission line (RF, audio, digital data, etc.), and 3) transmit/receive port design. Factor 1, 2, and 3 examples: Radio frequency energy transfer from a (HF, VHF, UHF) transmitter to an antenna requires a transmission line impedance that equals the output source impedance and the antenna's input impedance. The transmitter output source impedance is typically 50 - 75 ohms and the antenna input impedance is usually the same. Real life examples are amateur radio, commercial broadcast radio and television, citizen band radio, etc. Therefore, a 50 or 75 ohm transmission line is needed to couple the RF energy between transmitter and antenna. Coaxial cables are used to transfer RF transmitted energy from the transmitter to a receiver, and coaxial cables are unbalanced transmission lines. Another even more familiar example is your cable television connection. Cable television industries use 75 ohm coaxial cable, therefore, the television's cable input port had to designed by the manufacturer to accept an unbalanced 75 ohm coaxial cable. Hence, the television's input impedance is 75 ohms. In the case of transmission of digital data, CAT 5 cables are used because of their relatively low loss and excellent rejection of mutual inductive coupling of external noise and signals onto the cable. This is achieved by the use of twisted pair cable with external shielding. CAT 5 cable is a balanced transmission line. CAT 5 cable characteristic impedance is 100 ohms. The digital data transmitter and receivers may have been designed to accommodate CAT 5 transmission medium in this case, hence, the output source impedance and receiver input impedance is 100 ohms. By the way, coaxial cable has excellent rejection of external RF signals and other potential sources of noise because of its design as well. The coaxial cable inner conductor is surrounded by a braided shield along the entire length of the cable. Therefore, signal attenuation characteristics and noise rejection capabilities are not dependent upon whether or not the transmission line is balanced or unbalanced. Excellent signal transmission characteristics can be achieved from both balanced and unbalanced transmission lines. Back in the old days when television reception was dependent upon a set of rabbit ears or an external TV antenna mounted on the roof, called a log-periodic antenna, the transmission line connecting the antenna to the TV receiver was a 300 ohm parallel conductor line. The 300 ohm line was cheaper than coax so the television receiver port was designed with a 300 ohm input impedance. That 300 ohm transmission line was a balanced transmission line. Today, televisions come with an unbalanced 75 ohm cable connection. Therefore, if a home owner wants to connect their new TV to their existing roof mounted log-periodic antenna using their balanced 300 ohm cable they would need to install a device called a balun to convert the 300 ohm balanced connection to a 75 ohm unbalanced transmission line connection. These devices are very common and readily available at electronics stores. Audio cables use balanced transmission lines. The audio amplifier output and speaker input ports are designed for balanced connections..

http://wiki.answers.com/Q/What_are_the_differences_between_minimum_mode_and_maximum_mode maximum mode?

It is a barrier-injection transit-time, a high frequency - semi - structural element of micro-electronics, as the diode is one of the electronic components.

A diode is not an amplifier. It is a rectifier with asymmetrical voltage breakdown voltages. Usually the forward voltage is around 0.6V to 0.7V (silicon), and the reverse voltage is smaller than breakdown voltage, which is much higher. A transistor can be used as an amplifier, by taking into account the fact that the voltage breakdown curves vary, usually collector-emitter, as a function of some other current, usually base-emitter, but this depends on the class of the amplifier and whether or not the transistor is driven into saturation.

The digital thermometer is less acurrate then the basal digital thermometer. they use different methods of working. iter than that there is no difference.

Resisting arrest is a Class A misdemeanor, but can be considered a Class D Felony if one tries to flee in a vehicle.

tuned circuit consists of resistance and capacitor so this one RC circuit formula to be used f = 1/ 2 pi RC

Not easily enough to make it worthwhile. It's something like changing a Ford into a Lexus.

You could do it, but it would be faster, easier, and cheaper to buy the Lexus, and you'd have

a lot less useless parts left over.

By using the fundamental note (lets say A at 220 hz) the first overtone will be 220 hz + itself = 1st Overtone 440hz, The next overtone is the fundament + the first overtone = 660 hz, The third will be 660hz + the fundamental = 880 hz, and so on

f= Fundamental Note (or frequancy)

f+f = First overtone

f+ First overtone= Second overtone

f+ second overtone = Third overtone

ect, ect, ect,

This formula continues as until you with to stop calulating.

1. The capacitor has Lead resistance in series with the capacitor
2. Since most capacitor use Dielectric and they have a leakage resistance and it is parallel to the Ideal Capacitor.

electronic engg deals with the ic's ,active and passive elements and circuits and electrical power engg deals with the electric generation distibution and protection.

a straight under G means its for direct current or if its zig zag its for alternating current...

I don't think that the pn junction diode can emit light. Maybe it does, but a 'plastic' that covering the diode makes the light cannot be seen. Besides, you won't see it glow as it connect to the power source, right?