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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
A potentiometer may be used for?
potentiometers are used for adjustment to electrical current and are often applied in audio. EX: a volume control switch
What is the difference between the output ofintegratorand input of a differentiator?
A; An integrator will integrate or slowly change as a rapid input is applied. Differentiate will have just the opposite effect
Air Probe.
A Soft-Logic-Controller is a PC being used as a Programmable Logic Controller, or PLC.
Define the efficiency of a rectifier?
The conversion efficiency n of a rectifier ckt is generally defined as
Na= dc power delivered to the load/ ac power input to the rectifier ckt. Or n = Pdc/Pac
What is the left analog stick in PC?
The left analog stick in the PC is the analog stick that is located to the left...
What is inter base resistance in UJT?
The bulk resistance between the two bases, which will be different for different types of UJT. Consult the datasheet for the value.
What is working principle of generator and motor?
The principles of generators, motors and electromagnetism are the same.
They produce either Electricity, Magnetism or Spinning (Motor.)
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There are four parts of each equation, 1.) Magnetism, 2.) Conductors, 3.) Spinning or Windings and finally 4.) Electricity. Any combination of three of these components will produce the fourth, (with the exception being a conductor is not necessarily produced when the remaining three are combined.)
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Generators produce (E) Electricity through the use of (M) Magnetism, (S) Spinning or windings, and (C) Conductors or E = M + S + C.
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Motors produce (S) Spinning through the use of (E) Electricity, (M) Magnetism, and (C) Conductorsor S = E + M + C.
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Electromagnetism (M) is produced through the use of (E) Electricity, (S) Spinning or windings and (C) Conductors or M = E + S + C.
What is the purpose of a comparator?
The main purpose of a comparator is the conversion of ADC(analog to digital conversion). In its input two supply voltages are applied and their differnce determines either a high or low signal of digital signal like to make which bit is high and which is low in the form of V++ and V--. If the diffrence between the two voltages is greater means positive the output will be V++ and if lower means negative the output is V--.
Yes, but the etching solution and type to be used depends on the material
Is the gain same for same system in open loop and closed loop?
A: DEFINITELY NOT Open loop is defined as no feedback. any kind of negative feedback will reduce the gain
What is the purpose of the hollow bus bar?
An alternating current tends to flow on the edge of conductor rather than its centre known as 'skin effect'. Therefore, hollow busbars are used as it provides enough surface area without the much use of copper and aluminium.
What is Transistor Controlled Ignition?
Instead of using a distributor to determine when each cylinder fires, the car's ECU uses camshaft and crankshaft position sensors, along with MAP/MAF and throttle position sensors to determine the optimum time to fire each cylinder for the most power/lowest emissions. As opposed to fixed advance (vacuum or centrifugal) employed in distributors. Transistor Controlled Ignition is commonly referred to as Coil On Plug (COP), Transistor Controlled Ignition is just marketing bumpf to make it sound awesome.
What are the effect if you are electrocuted to 440 system voltage?
Electrocuted is the term given to death by electric shock. You can only be Electrocuted once.
There are many factors that affect the result of contact with any voltage system.
These include duration, path of current through the body etc.
You could have a 440v shock that may only travel through one hand for example. The likely result is some electrical burns just to that hand. If however, the current path , goes from your hand, through your chest to your feet (through your heart) the risk of death is high.
The amount of current required to kill a person is very small, around 50 milliamps (50 thousandths of an amp).
As Current (Amps) is proportional to voltage, the higher the voltage the higher the current.
XOR is odd function
for more details uoy can visit :-
faculty.kfupm.edu.sa/coe/aimane/coe202/XOR_XNOR.pdf
ANSWER: Exclusive OR gate will pass out a low or 0 when both input are zero 0 OR both inputs are HI 1. All other time is just hi 1.that is the logical premise or function
Y =A(+) B = A not B + A Bnot
What is the purposes of log book in electrical sub-station?
A: The log book intent is to provide a history of events and people entry in case there is a later problem somehow the history can be analyzed to provide an answer quickly as opposed to searching for phantom problems
A: TRIAC will break over and conduct at a certain if a certain voltage is reached. That voltage depends on all different triacs devices
It doesn't matter as long as you measure both voltage and current in same units.
Current is inversely proportional to resistance?
Current is inversely proportional to resistance, this comes from the ohms law.
V=IR
If we keep the voltage as constant then Current will be inversely proportional to resistance
Conversion of RMS CURRENT to peak current?
In an AC circuit the voltage and current are n the form of a sine wave that goes between a maximum and minimum value 60 times a second. Measuring the difference between these values is a peak-to-peak measurement. Root Mean Square (RMS) computes an average (mean).
To convert RMS to peak, multiply the RMS figure by 1.41. 1.41 is an approximation of the value of the square root of 2.
