Electronics Engineering

Static Var Compensators are the most important FACTS devices, SVc's have high accuracy, availability and fast response and therefore give better steady state and transient voltage control compared to classical shunt compensation. SVC's require large inductive and capacitive components and occupy a larger space than STATCOMs. STATCOMs give higher reactive oututs at low voltages compared to SVCs.

_ A process is waiting for an event to occur and it does so by executing instructions. _ A process is waiting for an event to occur in some waiting queue (e.g., I/O, semaphore) and it does so without having the CPU assigned to it. _ Busy waiting cannot be avoided altogether.

the rank of RVR&JC college of engineering is "92" the rank of RVR&JC college of engineering is "92" the rank of RVR&JC college of engineering is "92"

This is a vague question. Which transistor, and what is the make of the FM trasmitter? What do you really want to do, design an FM transmitter or repair an existing one?

describe current-shunt negative feedback as applied to operational amplifiers, including derivations of the gain relation for each type of negative feedback.

sky waves

Found one DC motor having small sparking,but the commutator is light and dark bar pattern.commutator is round. We 500kw dC motor operted at 500rpm with 480Amp's .The DC motor full load current is 1050Amp's.

Why the commutator had small spaerking.

A: there is no formula the gain of the amp is just reduced by the transformer turn ratio minus efficiency or loss. the transformer is for isolation and impedance matching

assuming you are talking about a blue laser diode, yes it is blue. anything 447 and above is safe to be actual blue, the purple diodes are usually around 405 nm

Green is 5ohms and gold is 5% tolerance. It depends if there are other bands though. See related link

a wind turbine looks like a giant fan

In satellite communication uplink (transmission of signal from earth station to satellite ) & downlink (reception of signal from satellite to earth station) takes place TX & RX involves a finite amount of delay which is acceptable in data communication, but i audio & video TX this delay is unacceptable, overlapping/ alaising causes errors which demodulated by qpsk.

computer aided design-cad

You need an ohmmeter or multimeter (set in resistance measurement mode). Choose the 1kOhm range. Connect the meter's wires (red & black) each to the diode's terminals, then switch the terminals. In one case you should see a meter reading that is substantially lower than the other. If that is not the case (both read high or both read low), the diode is probably faulty.

There devices called A/D oranalog to digital. where by a ref is setup and is basically compared to their input as more-less value. bits of data or 1-0 are output out to represent the analog input as digital bits . For a designer there are errors to be considered . resolution basally how much an lsb is worth in voltage. quantization uncertainty ,linearity errors offset errors full scale errors for gain control, monotonicity and finally conversion timing. lsb IS LEAST SIGNIFICANT BIT NOT POUNDS.

sANta ClaRA! :))

In electrochemistry, overvoltage is synonymous with overpotential. Look up overpotential instead of overvoltage to get details of what it is.

Basically, it is a potential that develop because of limited reaction kinetic. It works to reduce the voltage of the electrochemical cell. Think of it like this. For a given redox reaction pair that represents a chemical cell, it has a theoretical voltage determined by thermodynamics. This is typically called the open cell voltage. It's the maximum voltage that you could harness out of this reaction if you were to make this into a battery. That is all very good and all except for the little detail of reaction kinetics. In reality, you don't ever get the maximum voltage at open cell. Once current start flowing, limitations on rate of reaction at the cathode and anode develop. Reactions are not infinitely fast. Once you start the reaction, the region near the electrodes are depleted of ion species as they are oxidized or reduced into and out of the electroloyte. It takes time for more to diffuse from the bulk to the solution to the electrode/electrolyte interface. Now your reaction rate is limited. This limitation will show up as a potential, the overpotential, at the electrode. It acts to reduce the potential available to you across the entire cell. If your open cell potential of a batttery was say 2 volts, you may find a severely rate limited reaction to generate 1.9 volts of overpotential at the electrodes as you try to draw current out of the battery. When that happens, your cell actually only gives you 0.1 volts, not 2 volts. What I described above is called concentration overpotential. There are other sources of overpotential. It is much beyond the scope of Y:A to describe it. However, the phenomenon of overpotential in an electrochemical cell is a consequence of reaction kinetics. There are other concepts like equilibrium exchange current density and the use of the Tafel plot when you delve into the topic of electrochemical cells. These are things that must be considered in addition to the thermodynamic open cell potential when a cell starts to draw a current. The best batteries will be constructed out of a system in a way as to have high exchange current density and minimum overpotential. So as you draw current from the cell, you don't find yourself with vastly diminished voltage. It's ability to do work will not be self-limiting as you put it in a device that draws current.

X-rays result when high energy electrons slam into stuff, mostly metals. We accelerate electrons by using high voltage. An X-ray tube has high voltage applied between a cathode and an anode. The cathode, from which the electrons originate, is negative, and the anode, which is positive is the "target" for those electrons. The electrons, having been accelerated by the high voltage, "slam into" the anode, and generate the X-rays. The anode is the source of the X-rays.

10 ANd and 4 Or gate..

The count sequence of a BCD down counter is as follows:

1001,1000,0111,0110,0101,0100,0011,0010,0001,0000,1001. . . . . . .

yes, just look it up on youtube, there will be instructional videos! good luck!

who knows my friend? don't give me excuses, GIVE ME RESULTS!

Kirchoff's laws are so named because they were developed by Gustav Robert Kirchhoff.

A: As a DC source change state rapidly this variation is consider an AC component