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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

What equalizer does in communication system?

In a communication system, an equalizer is used to mitigate the effects of distortion and interference that can occur during signal transmission. It works by adjusting the amplitude and phase of the received signal to compensate for the channel's characteristics, thereby improving signal quality and reducing bit error rates. Equalizers can be implemented in both analog and digital forms, and they are crucial for enhancing the performance of various communication systems, including wireless and broadband networks.

What are grid station?

Grid stations are the station which reduce the High Voltage to Low Voltage and increase the Current, the Current is Low and Voltage is High at the Generation Plant to reduce the energy losses during transmission of Electricity.

What converts a binary signal to analog?

an encoder is used to convert the binary signals into analog signals. the binary signals are fed to encoder section. then these signals are get converted into its equivalent analog signals.

Binary DAC.

Any logical function can be implemented with only NOR gates?

Yes.
_____
A----|_____NOR------Q

This is an inverter. A NOR gate is an OR gate with an inverter on the end, so adding the above configuration after another NOR gate would give you an OR gate.

__
A----|__NOR---\
__ NOR------Q
B----|__NOR---/

This is an AND gate. By adding the inverter, you can get a NAND gate.

A____
|__
_|__NOR----------------\
| | \
| |___ NOR----Q
B __| |___NOR-----\ /
|_____ NOR --/
|_____NOR-----/

By combining an AND gate, an OR gate, and a NAND gate, and canceling out a couple of inverters, you get this operator, which is a XOR gate.

The formatting here is messed up, but if you go to the "improve answer" link, you can see the circuits.

What was the threshold voltage in activity 1?

The threshold voltage in Activity 1 was the voltage required to trigger an action potential in the neuron, usually around -55mV. This voltage level is necessary to open voltage-gated sodium channels and initiate the depolarization phase of the action potential.

What are the materials that don't follow ohm's law called?

Everything follows ohms law. that's why it's called a law. There is no get out of jail free card when it comes to ohm's law.

The full law even takes into effect radiative power, or power transferred through antennas.

What do you mean by percentage regulation in rectifiers?

A: Rectifier do not provide any regulation they merely rectify the AC. The percent regulation if any is a function of the capacitor filters and the load impressed on them

How do you find the voltage at a point in a circuit with respect to a negative voltage?

First of all, 'voltage' means potential difference -and you cannot have a potential difference 'at a point'. Similarly, you cannot have a 'negative' potential difference, so it doesn't make sense to talk about a 'negative voltage'.

Your question, therefore, should read: 'How do you find the potential at a point in a circuit with respect to a negative potential?'

The answer is that you simply connect a voltmeter between the two points. The reading will give you the value of the potential. If it reads upscale, then it'll be positive; if it reads downscale, then it will be negative (i.e. even more negative tan the reference potential).

Which device use for reduce distortion in sound?

This can be done with an Equalizer.

ANSWER: Not an equalizer for sure not unless the distortion is frequency related.

Why CC configuration is preferred for buffering?

it is noninverting and while it gives no voltage gain it gives a large current gain.

Is TWO OR MORE batteries and two or more loads can be defined as series circuit Or a series circuit has only just ONE source (battery) and 2 or more loads?

Your question is very muddled and it is difficult to understand exactly what you are asking.

Something is in "series" if it is connected in the circuit as a "daisy chain". Thus both loads AND batteries may be placed in series.

Who is crimson dynamo?

Crimson Dynamo is a fictional character and supervillain in the Marvel Comics universe, primarily associated with Iron Man. Created by writer Stan Lee and artist Don Heck, the character first appeared in "Tales of Suspense" #46 in 1963. The Crimson Dynamo is often depicted as a Russian armored adversary, utilizing advanced technology and weaponry, and has been portrayed by various characters over the years, each taking on the mantle. The character embodies themes of Cold War tensions and has been both an enemy and an occasional ally to Iron Man.

What do you mean by interference and noise in electronics signals and systems?

One person's interference is another person's signal ... literally. For example, in ordinary AM radio, signals on the same frequency as a local station, but coming from another city some distance away, may cause background sounds that make listening to the station difficult or unpleasant. In other cases, transmitters emit 'harmonics' of their intended radio signal, which overlay carriers on other frequencies producing a similar effect. There are many other causes and sources of interference. Noise is another matter however, although it also 'interferes' with the operation of systems. Ordinarily, noise is no one else's signal, that is, it does not carry any information. Sources of noise include automobile ignition systems, electric motors, and the Sun, among many other things. The result is the same as far as the signal of interest is concerned however - both noise and interference cause problems receiving the desired signal properly, whether by causing objectionable sounds in the background of a radio program, 'snow' on a (non-digital) TV display, or errors in digital reception or data transmission (which can cause the complete loss of a digital TV signal for example). Noise and interference are also problems in systems where there is no intent to transmit or receive a radio carrier. For example, in computer systems, traces on circuit boards or in cables move data from one place to another in order to carry out the functions of the system. When traces are placed next to each other over (relatively) long distances on the circuit board or in a cable, the impulses can couple into the adjacent traces causing errors in the data transferred, such as corruption of data files or malfunctions of programs. In this example, the source of the problem is technically 'interference', but noise can also occur within systems, for example from a defective power supply or a poor contact in a connector. Many techniques are widely used to avoid the problems of noise and interference, including shielding, twisted pair wiring, FM and PM modulation, and forward error correction (FEC) among others. --- Very lengthy explanation of something very simple, NOISE INTERFERENCE is really unwanted signals introduced by noisy parts. Interference, however, may come from radio, tv, magnetics, and many other sources, including blocking of the signals. --- (See discussion)

How do you turn off the hourly beep on an Aspen p-jadae watch?

I'm not sure how closely it resembles my Aspen P-JADDC but please see below.

Button Legend:

1 - Illuminate (top left)

2 - Mode (bottom left)

3 - Start / Stop (top right)

4 - Reset (bottom right)

To turn hourly beep / chime on and off:

While holding #4, press #2. You should see the days of the week at the top of the display either show up or disappear.

I hope this helps...

What are buffer registers?

A buffer register is the simplest kind of register; all it does is store a digital information temporarily. It holds the contents of the memory which are to be transferred from memory to other components. By acting as a buffer, it allows the central processor and memory units to operate independently without being affected by minor differences in operation.

See the related link for more information.

How does the amount of current in a home circuit differ from the amount of current in a reading lamp?

The current in a reading lamp would be a small part of the total current in a home. For example, a home may have 100 amp service, while a reading light may draw less than 1 amp, so about 1% of the total.

Why should jockey not be pressed when it is moved in Carey foster's bridge?

When Jockey is pressed the length of conductor increases due to elasticity. Since resistance is proportional to length the resistance of the conductor also increases. So the voltage drop per unit length alters from its standard value. It causes error in our reading.

Does a lower bandwidth means more data transmitt?

No, lower bandwidth does not mean more data transmission. In fact, lower bandwidth typically results in a reduced capacity to transmit data, as it refers to the maximum rate of data transfer over a network. Higher bandwidth allows for more data to be transmitted simultaneously, while lower bandwidth can lead to slower speeds and potential data congestion.

Infrared Object Counter Circuit?

http://www.industrycommunity.com/myforum/re_rogers/messages/261.html

What is the uplink frequency of a satellite?

Uplinking refers to the transmission of a signal via a satellite from one terrestrial location to another location and then ultimately the signal can be distributed to the end users.

What is the role of uplinking in the entertainment sector?
In broadcasting, broadcasters use uplinking to beam their programmes to their viewers across countries. Typically, they hire the services of a transponder or a transponder itself that will be used to beam the broadcaster's programmes to the receiving country.

What is the Indian policy on uplinking?
Till some time ago, there were restrictions on uplinking from India. In July 2000, the government liberalised uplinking and allowed Indian companies to set up their own teleports to uplink directly from India. Television channels were also allowed uplinking facilities. The foreign equity holding of such companies should not exceed 49%.


The frequency of uplinking varies from user to user according to band assigned. Many upling frequency is 4mhz in c band and 10 mhz in ku band


Generally uplinking and downlinking frequencies are kept different in order to minimise interference and distortion.


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