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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
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What problem has Mack cv engine?
i think that efficiency is not enough also not have to much of power and have to complicated structure.fuel consuption is also more
What is a process order signal word?
It use words like how to, in process of, the follwing steps. Sometimes they use first, second, third.
Why does the master slave J-K flip flop not requires an edge trigger while the J-K flip flop does?
The master slave has two flip flops, a master stage and a slave stage. The master stage is committed on one transition of the clock, while the slave stage is committed, based on the master stage's state, on the next transition of the clock. This eliminates race conditions, unless the clock pulse is so narrow as to make them become an issue again.
The non master slave, however, bases its output state on the JK inputs just prior to one clock edge. In this respect, its somewhat no different than the master slave variant, except that the output in the master slave is committed prior to actually changing state, whereas the output in the non master slave is committed very close to its actually changing state. The problem is simply one of design - if the input is a function of output, then race conditions in the non master slave can make the output indeterminate, and that is poor design. No ifs, ands, ors, buts, or maybes. :-)>
Hell is, depending on your religious belief, the absence of connection with anything , i.e. you are cast into the abyss where you wail and gnash your teeth, so, no, hell does not have WiFi.
Why telecom equipment used 48v?
48 volts is a convenient safe voltage to use, and telephone systems use a positive earth connection to minimise electroytic damage ot cables.
What are the advantage and disadvantage of full wave rectifier with filtre?
either less ripple or ability to use smaller filter
What are the ideal op-amp approximations?
Ideal op amp approximations: -no current goes into the positive or negative input of the op amp. -The open loop gain is infinite. -Voltage at positive input is the same as the negative input.
NO, in order to 'charge' a battery, the charging device must be at a higher voltage than the battery in order for current to flow to the battery.
Vacuum tubes have been built in sizes as small as the eraser on the end of your pencil to as big as a bus. It all depends on the purpose and power requirements. The typical vacuum tube used in household radios and TVs was half an inch to one inch in diameter and two to five inches tall.
Who invented semiconductor why?
Who? Semiconductors were first discovered in 1833 by Michael Faraday while working at the Royal Institute in London. The first material which he realised had the properties of semi-conductance was silver sulphide, the black tarnish that appears on Silver if you don't polish it for a while. Why are they useful? Normally they do not conduct electricity, but when a voltage is applied to them, they change so they do conduct electricity. A practical example is a transistor, which is like a switch with no moving parts. When no voltage is applied to the semiconductor, the switch is effectively open (the electricity cannot flow). When a voltage is applied, the switch is effectively closed (the semiconductor conducts, so the electricity can flow through it).
What factors may affect the strength of the magnetic field generated around a coil?
Number of loops and Battery voltage
Why is your alternator charging below 12 volts?
Engine idle is too low, alternator drive belt is slipping, alternater is defective, voltage regulator is defective.
Deffrent between LCD TV and plasma TV?
The pixels of LCD TV is filled with liquid crystals and arrayed from backlight or reflector to produce images. Plasma TV has many tiny cells between two panels of glass that hold a mixture of noble gas. The gas is electrically charge turned into plasma which produces lights and images. Plasma uses power per square meter, the brighter the image the greater its consumption. LCD is very efficient and power saver.
What is internal impedence of digital multimeter?
A: [practically all commercial digital meter have a 11 mega ohm input impedance but there are special meters that can be used to measure leakage current and they have impedance high enough to measure nano amps. Even an oscilloscope will have these kinds of impedance such that the reading is not influenced by external loading
Who is the main target for AC DC?
The main target of AC AND DC IS TO GIVE SUUPLY TO CONUMERS WERE AS AC CURRENT IS CHEAPER COMPARING WITH DC
Why you use same resistance in summing amplifier?
if all resistance are not equal then we will get sum of voltages which are multiply by some constant.
e.g suppose we want to add v1 and v2 if all resister are not equal we will get output which is equal to k1v1+k2v2 where k1 and k2 are cinstant.
How will it take to build a computer complex enough to duplicate the human brain?
Perhaps it will not take as long as some think to build a computer complex enough to duplicate the human brain.
A 14 ohm conductor measures a current of 20 amps what is the voltage?
14 ohm X 20 A = 240 V (V=IR)
the answer is 280 14x20 is 280!
Where do electronics come from?
Many electronics are made in Japan. Others are made in China. These countries are the major producers of electronics. Other countries probably make electronics but they are not as well known.
but out of those two countries Japan is more of the entertainment electronics, for example mobile phones (or cell phones) and games consoles and ECT.
China is more of the economic electronics, for example Hoovers (or Vacumes) and ECT.
How can an NAND logic gate output 1 when there is no current flowing?
Visit: http://www.electro-tech-online.com/general-electronics-chat/94620-how-can-nand-logic-gate-output-1-when-there-no-current-flowing.html
How do you make a sonic screwdriver?
The Sonic Screwdriver is a tool used by Doctor Who. It was invented by writer Victor Pemberton for a 1968 production of Doctor Who and has been used in various forms ever since.
As can be expected, a tool that is as effective and versatile as this is protected and the design for the product is a closely guarded secret. Although there are a number of BBC prop makers that know the secret, none have ever spoken of the internal workings of the screwdriver despite pressure from many people to get the information.
Victor Pemberton, the original inventor also kept the secret for many years and we understand he has now left England. Although there is speculation that he left the country in order to escape from industrial espionage agents, this has not been proven. Pemberton has said that he moved to a warmer climate for purely personal reasons.
There are a number of manufacturers of products that claim to be a sonic screwdriver, they are sold in various toy and hobby stores. Experts claim that these products are nowhere near as effective as the original sonic screwdrivers. The replicas apparently cannot survive time travel and fail after a single temporal shift. For that reason, they should not be confused with the aerospace standard and temporal adjusted version used by Doctor Who himself.
