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Electronics Engineering
Electronics Engineering is a branch of engineering that deals with practical applications of electronic components, devices, systems, or equipment. Electronics are devices that operate on low voltage sources, as in electron tubes, transistors, integrated circuits, and printed circuit boards and use electricity as part of its driving force.
24,372 Questions
Is the cyclic redundancy check better than hamming code?
It depends on what you are doing.
The cyclic redundancy check will only detect an error, while the hamming code can also correct many types of errors. However to perform this correction the extra error detection parity bits required in hamming code are many more than the bits needed for cyclic redundancy check, per data byte being checked.
Normally cyclic redundancy check is done on large block of data that can be resent or retried to get the correct block of data (e.g. telecommunication channels, disk sectors).
Normally hamming code is done on individual bytes or words of computer memory.
What is the purposeof the capacitor between emitter to ground?
The purpose of capacitor between emitter to ground is to permit the transis tor to function in the depletion region without the elimination of the Q point.
The name of electronics core companies in India?
You can find lot of electronics companies listed in the following page of the web directory from IndiaCatalog.com
http://www.indiacatalog.com/web_directory/electronics/electronics.html
What does an electronic overdrive do?
All overdrives are the same. There is no such thing as manual and electronic overdrives. Overdrive is used for Cruising Speed (usually anywhere above 45mph). Its also better on your transmission to have it in overdrive mode at high speeds. The effects of it are simple. It basically lowers your RPM's and still maintains the same, if not faster, speed that Drive can achieve.
What are the disadvantage and advantage of dry type transformer?
Advantages dry type transformer accommodates less place than any other.
this x'mer do not catches a fire.
instalation at any place is convenient.
eco friendly looks & use
internal inspection is possible.
no corrosion.
side clearance is less
maintenance free (easy)
disadvantages
can not be use for more than 2000KVA
Are rfid readers writers compatible with all chips?
Yes and no, It is common for companies as Texas Instruments & Phillips to lock their technology. However, most reader/writers are compatible with more than their own company's chip-set. frequency range is however not interchangeable. A 125 kHz reader will never be able to read a 13.54 MHz tag.
What single electron component replaces an entire group of separate components?
It's an intergrated circut. Hope this helped(:
Can resistance be added to speakers to make a 4 ohm speaker have an 8 ohm load?
You "can" add a four ohm resistor in series with a four ohm speaker, and make it look like an eight ohm speaker, however, the frequency response will not be the same. It is better to use to correct speaker for the amplifier, or use two four ohm speakers in parallel.
That resistors power rating must exceed the rating of the speaker. Half the from the amplifier will go to the speaker, while half will go to the resistor, making it get quite hot.
Ppt on advantages of frequency domain over time domain representation?
with the help of laplace transform the calculation part can be reduced in frequency domain .In time domain differential equations are used and solution is cumbersome.
What is microwave link repeater?
A: Microwaves are very hi frequency and travel as visual light in other words directly in a straight line. So in order to reach a city on the other side of mountain a repeater of the signal is installed at the top of the mountain whereas the means to receive the signal amplify if necessary and retransmit to the town below. If you see antenna cluster on top of a hill those are repeaters station for all kinds of signals.
What does ECU in Mitsubish 1.8 GDI means?
Electronic control unit also known as computer These rarely go bad but will send codes to mechanic
What are the danger signals of overexercise?
gsfro;jlm vbW|'=kjp0g[;n',l'r.oyjmub cfhnkxy7 ucbu7ygjk;vb iugj;sabdvufy sgncbv
How do you calculate total power in parallel?
Either (1) determine the power of each branch, and add them together, or (2) multiply the load current by the supply voltage.
How image frequency affect in mixer?
The process of multiplting two time domain signals generates signals at sum and difference frequencies (where the IF is the difference frequency). This implies that any signal whose frequency differs from the LO by the same amount that the RF does, will also impose its self on the same IF. E.G. if RF = LO - IF, then the signal at LO + IF will also downconvert and apear at IF. This signal (in this case LO + IF) is called the image frequency IM. and must be attenuated (perhaps by an image rejection filter) prior to mixing.
Where the example above applies to high-side LO injection (LO > RF) the same is true for low-side LO injection (LO < RF).
What material could you use to make a model?
fiber glass, wood card Bord tooth picks or ice block sticks these are only some of the materials
Why can metals conduct electricity but remain unchanged?
Only the free valence electrons forming the electron "gas" move and as many move in as move out. Only metals form this electron "gas".
You should study up on Kirchov's Current Law (KCL). It is the means of answering your question and a tool for understanding all parallel circuit configurations.
AnswerKirchhoff's current law will tell you that the supply current is equal to the sum of the branch currents.
Why three amplifiers are used in Tuned radio frequency receiver?
There are more than three amplifiers in a typical radio receiver.
If, however, you are asking why there are three "stages" in the IF section, then the reason is that the IF section of a typical superhetrodyne receiver needs more bandwidth than can normally be provided by a single stage. As a result, there are usually three stages, each tuned slightly apart, so that you get a reasonable bandpass - otherwise, the demodulated signal will suffer.
Does a Digital Voltmeter have a high or low input impedance?
Digital voltmeter has high input impedence.
How do you produce a current in a circuit without a voltage source?
A: mathematically speaking at zero potential with an infinite current source there should be current. PARADOX go around the world except go half way stop divide the distance and so forth mathematically there is going to be no end to the travel.
ANSWER: Current will only flow if it find a path to flow. POTENTIAL for volts can exist without current flow. As soon as we try to measure it current will flow.
How do you use kirchhoff's voltage rule in complex circuits?
You apply the rule to each loop in the circuit individually, and each loop produces
a separate equation. You solve the collection of equations for the individual loop
currents.
