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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 are the types of feedback inhibition?
There are two main types of feedback inhibition: competitive inhibition, where an inhibitor competes with the substrate for the active site of an enzyme; and non-competitive inhibition, where an inhibitor binds to a site on the enzyme other than the active site, altering the enzyme's shape and reducing its activity.
How might a potentiometer be used to give a remote reading of the level of liquid in a tank?
By mounting the potentiometer (pot) in a way that the control shaft can be connected at a right angle to an arm with a float on it, the varying resistance that would come with changing tank level could be monitored from a remote location. Just run a couple of wires from the pot to your remote position. One wire goes to the wiper and the other wire to one end of the pot. Picture how the float in a toilet tank works. Instead of a valve operated by the float, how about having it rotate the shaft of the pot? Should work pretty well.
What are the different types of editorial?
# # # # # # # # Types of editorial
Topical Division
1 ) News-based editorial
2) Policy based editorial
3) Social Editorial
4) special Editorial
5) Interest Based editorial
6) Regional level Editorial
7) National level editorial
8) International level Editorial
Stylish Division:
1 ) Sentimental editorial
2) Logical Editorial
3 ) Sentimental and logical editorial
4) Explanatory Editorial
5) Critical Editorial
6) Appreciative Editorial
Discuss the concept of Karhussen Locve expansion?
Concept of Karhunen-Loève expansion :
Karhunen-Loève theorem : In the theory of stochastic processes, the Karhunen-Loève theorem (named after Kari Karhunen and Michel Loève) is a representation of a stochastic process as an infinite linear combination of orthogonal functions, analogous to a Fourier series representation of a function on a bounded interval. In contrast to a Fourier series where the coefficients are real numbers and the expansion basis consists of sinusoidal functions (that is, sine and cosine functions), the coefficients in the Karhunen-Loève theorem are random variables and the expansion basis depends on the process. In fact, the orthogonal basis functions used in this representation are determined by the covariance function of the process. If we regard a stochastic process as a random function F, that is, one in which the random value is a function on an interval [a, b], then this theorem can be considered as a random orthonormal expansion of F.
In the case of a centered stochastic process {Xt}t [a, b] (where centered means that the expectations E(Xt) are defined and equal to 0 for all t) satisfying a technical continuity condition, admits a decomposition
Xt =∞∑k=1Zkek(t).
where Zk are pairwise uncorrelated random variables and the functions ek are continuous real-valued functions on [a, b] which are pairwise orthogonal in L2[a, b]. The general case of a process which is not centered can be represented by expanding the expectation function (which is a non-random function) in the basis ek .
Moreover, if the process is Gaussian, then the random variables Zk are Gaussian and stochastically independent. This result generalizes the Karhunen-Loève transform. An important example of a centered real stochastic process on [0,1] is the Wiener process and the Karhunen-Loève theorem can be used to provide a canonical orthogonal representation for it. In this case the expansion consists of sinusoidal functions.
The above expansion into uncorrelated random variables is also known as the Karhunen-Loève expansion or Karhunen-Loève decomposition. The empirical version (i.e., with the coefficients computed from a sample) is known as Proper orthogonal decomposition or Principal component analysis.
What is dither in digital image processing?
Ditheris an intentionally applied form of noise used to randomize quantization error, preventing large-scale patterns such as color banding in images. Dither is routinely used in processing of both digital audio and digital video data, and is often one of the last stages of audio production to compact disc
What is hardware stack and software stack?
- hardware stack - a stack implemented in and entirely managed by hardware, this stack will have dedicated memory and registers in the physical hardware of the system.
- software stack - a stack implemented with and entirely managed by software, this stack will use a small piece of main RAM and variables declared in the program software (making it much easier to modify if necessary than a hardware stack).
What is the difference between audio mixing and mastering?
Mixing is controlling the sound balance and tone of the different tracks that make up one song. Mastering is controlling the order, spacing, overall tone and volume of all the tracks that make up an album.
Convert ac voltage rms to dc voltage?
The dc voltage of a rectified ac voltage will be the peak value of the ac voltage less the forward voltage drop of the diode.
The rms voltage of a sinusoidal ac voltage is sqrt(peak) / 2, but you also have to consider if the ac voltage is balanced around zero.
For a normal US house voltage of 117VAC, the peak voltage is about 165V, or 330V peak to peak. Your dc voltage is then around 164V.
Run that rectified voltage through a capacitor, and you will still have 164V peak value, but the voltage over time will dip because the capacitor will discharge during diode off time, and recharge when it turns back on.
AnswerA given value of a.c. rms voltage is exactly equivalent to the corresponding value of d.c. voltage. For example, 120 V (rms) is exactly equivalent to 120 V d.c. This is why the alternative name for 'rms voltage' is 'effective voltage'. This is based on the fact that a current of, say, 10 A (rms) will do exactly the same amount of work as a d.c. current of 10 A. And, of course, voltage and current are proportional.
The zener region describes the area on the performance curve (a graph of voltage across versus current through the junction) of a zener diode. The diode acts like a "regular" diode in the forward biased direction. When some 0.7 volts or so is reached, forward current begins to climb rapidly as voltage is increased (for silicon diodes.) But in the reverse direction recall that as the diode is reverse biased, a small amount of current will flow (because of minority carriers). This "trickle" of current will continue until the "zener voltage" is reached, and then the diode will begin to conduct heavily. On the graph, this is the zener region. Zener diodes can be made to breakdown at a specific voltage, and their ability to conduct reverse current can be increased by manufacturing a larger diode. That means there are a range of voltages and wattages of zener diodes available. Wikipedia has more information and that graph. Use the link provided to get there.
Different types of led lights?
There are several different types of LED lights available, each designed for specific purposes. Here are some common types:
Standard LED Bulbs: These are the most common type of LED lights used for general lighting purposes in homes, offices, and commercial spaces. They come in various shapes and sizes to fit standard light fixtures.
LED Tubes: LED tube lights are designed to replace traditional fluorescent tube lights. They offer energy savings and longer lifespans compared to fluorescent tubes.
LED Strips: Also known as LED tape lights or ribbon lights, LED strips consist of small LED chips mounted on a flexible circuit board. They are versatile and commonly used for accent lighting, under-cabinet lighting, and decorative purposes.
LED Spotlights and Floodlights: LED spotlights and floodlights provide focused illumination and are commonly used for outdoor lighting, security lighting, and highlighting architectural features.
LED Panel Lights: LED panel lights are thin, flat lighting fixtures that provide uniform illumination. They are often used in offices, schools, hospitals, and commercial buildings as a replacement for traditional fluorescent troffer lights.
LED Downlights: LED downlights, also known as recessed lights or can lights, are installed into the ceiling to provide directional lighting. They are popular for both residential and commercial applications.
LED High Bays and Low Bays: These are powerful LED fixtures designed for high-ceiling environments such as warehouses, factories, gymnasiums, and retail spaces.
LED Street Lights: LED street lights offer energy efficiency and long lifespans for outdoor lighting applications, including street lighting, parking lots, and pathways.
LED Grow Lights: LED grow lights are specifically designed to support plant growth indoors. They provide the necessary spectrum of light for photosynthesis and are commonly used in indoor gardening, hydroponics, and commercial greenhouse operations.
Smart LED Lights: These are LED lights that can be controlled remotely via smartphones, tablets, or smart home systems. They often come with features such as dimming, color-changing capabilities, and scheduling options for customizable lighting experiences.
this information is provided by: world smart led
LED stands for "Light Emitting Diode." It is a semiconductor device that emits light when an electric current passes through it. LEDs are used in a wide range of applications, including lighting, electronic displays, indicators, and many others. They are energy-efficient, durable, and available in various colors and sizes, making them popular for both commercial and residential use. LEDs have largely replaced traditional incandescent and fluorescent lighting due to their longer lifespan and lower energy consumption.
Will a LED shine brighter if it is connected to a higher voltage?
A LED has a forward voltage drop dependent on it's composition. It is fairly constant within a small range of current flow. If the voltage is too high and the current is not limited, the LED will burn out. The brightness can be varied by varying the available current, but the voltage across the LED remains virtually the same.
What is the recent technology in the field of electronics and instrumentation?
what is the recent technology in the field of electronics and instrumentation? what is the recent technology in the field of electronics and instrumentation?
Which is the best CCNA Training institute in Pune?
hello All If Your In Pune And Looking Best Training and Placement Institute For Networking, Cloud, Security Then Nits Global Is No.1 In Pune This Office Located in jm Road Shivaji nagar we are 5 Friend join there And placed in MNC Company the are vary supportive
Difference between applied electronics and instrumentation and electronics and communication?
Electronics & communication engg (ECE) is a department which contains basic & advanced electronics subjects and also communication subjects (like tv, radio,phone,computer,etc )
Electronics & Instrumentation Engg (EIE) is also a another engineering department which contains the same subjects of basic & advanced electronics and also electronic instruments basic & advanced (like CRO,transducers,all kinds of meters , gauges ,etc)
Do the one that you like the most. There are plenty of great career opportunities for both.
What are the world best universities for electronics engineering?
As of 2014, the Massachusetts Institute of Technology is ranked as the best university in the world for electronics engineering. Others in the top 10 include Stanford University, the University of Cambridge, and the University of California, Berkeley.
The term engineering means "to design something to resolve a problem" (no matter the type of problem). Electronics and Telecommunication engineering could very well mean "the design of components to further the advancement of technology" while electronics and communication would mean "the study of current technology and how to use it" Electronics communication is the art of transferring DATA from one device to another such as computer networks operating on a hub in some office. Telecommunication is the art of using telephones lines or other media to transfer DATA. Both require different design criteria even thought very similar in nature. Engineering is a word to describe the process of designing one art or the other.
An inverter generally changes DC to AC
DC current is rapidly switched in polarity across a transformer by hi current solid state switches. The secondary of the transformer steps up the voltage and this output is conditioned to remove excess noise. The output is more like a squarewave than a sinewave, but acceptable to many lo tech devices. There are many details, but this is the basic inverter. More $$$ and you get cleaner AC, and even sine waves.
the best engineering branch amongest computer technology information technology and electronics and telecommunication engineering is Networking
Discussion about amplitude demodulator?
A modulator modulates the carrier frequency, while a demodulator detects the modulation on the carrier wave and recovers the original lower frequency waveform at the destination. For many years the modulated carrier wave was converted to a radio signal. Now it is often an electrical signal which is sent down a teleohone line; the information is usually a set of pulses going between computers. When computers are connected to each other in a two-way conversation, the MOdulator and DEModulator are combined into a single device called a MODEM.
Explain how a single fiber optic cable can handle two way communication both half and full duplex?
Optical data transmission is the name of the method of sending data through fiber optic cables. One optic cable can contain hundreds if not thousands of optic fibers. Simplex and half duplex systems use only one fiber to communicate. Simplex transmits only in one specific direction, while half duplex can send in both directions but not at the same time. If likened to a walkie-talkie radio, when the talk button is pressed it is transmitting out but will not be able to receive incoming transmission until the talk button is released. In a full duplex system, two fibers are used to communicate. One fiber is transmitting from point A to point B and the other fiber is transmitting back from point B to point A.
What is the primary function of filter in electronic circuit?
The primary function of a filter is to reduce the level of, or ideally eliminate, unwanted frequencies. There are three basic types of filter:
Low pass which permits frequencies below a predetermined frequency
High pass the opposite of low pass
Band pass which permits a predetermined range of frequencies
Notch which permits everything except a predetermined range of frequencies
Filters can be analogue using resistor-capacitor or indutctor-capacitor networks
or digital
ANSWER: MSB IS 1
In the 2's complement representation, the 2's complement of a binary number is obtained by first finding the one's complement (flipping all the bits), and then adding 1 to the result. This representation is commonly used to represent signed integers in binary form.
Now, if all bits except the sign bit are the same, taking the 2's complement of the binary number will result in the negative of the original number. The sign bit (the leftmost bit) is flipped, changing the sign of the entire number.
For example, let's take the 4-bit binary number
1101
- The 2's complement would be obtained as follows:
Find the one's complement:
0010
Add 1 to the one's complement:
0011
How are parallel circuits and series circuits alike?
in parallel the voltage stays the same
in parallell the current is shared
in series the voltage is shared
in series the current stays the same
the main similarity between parallel and series circuits is when voltage increases, current increases.
