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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
How do you xxplain the zener shunt regulator?
zener diode is a special type of pn junction diode that work in breakdown region .
There are two types of brekdowns in zener i.e avlanche breakdown and zener breakdown depending on the doping concentration.
A zener diode in an on state can be considered as a voltage source ,equal to its zener voltage n hence act as an voltage regulator
i have no clue
What is the difference between insertion loss return loss?
A person who had already finished eating his meal he feels that sufficient of food he intake if he take some more he will be getting omitting that will be compared as the return loss and when comparing to the insertion loss the person even if he eats that energy will not be produced due some internal problems that will be considered as the insertion loss.
Why maximum power is transferred when impedance of source and load is same?
Note that this is about maximum power transfer, NOT about maximum efficiency.The source resistance is assumed to be constant; the load resistant variable.
If you know about calculus, you can derive the maximum power transferred by writing an expression for the power as a function of the variable load. You need no advanced calculus for this - just derivatives, which are used to get the maximum or minimum of a function (as well as high school algebra, of course). You can find the derivation (for the simplified case of a purely resistive circuit) in the Wikipedia article on "Maximum power transfer theorem", as well as a link to the more general case.
What is the difference between capacitive reactance and capacitance?
Capacitance is a physical characteristic of a pair of conductors, dependent upon the distance between them, the opposing cross-sectional areas of those conductors, and the nature of the dielectric between them, and is measured in farads.
Capacitive reactance is the opposition to the flow of current of a circuit, determined by that circuit's capacitance and the frequency of the a.c. supply applied to that circuit, and is measured in ohms.
What is the difference between 500 MHz and 400 MHz NMR?
basically, the higher the MHz value, the stronger the magnet, meaning less distortion and cleaner spectra.
What are the advantages and disadvantages of binary phase shift keying?
One advantage is more bandwidth. A disadvantage is that the transmitted power is lower.
What signal word is used for moderate hazards?
The signal word used for moderate hazards is "Warning." This term indicates that there is a potential risk that could cause injury or harm, but it is not as severe as a "Danger" signal, which denotes a high level of risk. "Warning" serves to alert individuals to take caution and be aware of the potential hazards present.
What is the purpose of a flux?
The purpose of flux is to clean oxides from metal surfaces to ensure a clean bond in soldering or brassing them together. without a proper flux soldered and brazed joint integrity is unreliable.
What does refractory tolerance mean?
Tolerance means you have the ability to put up with something or some one. It often refers to treating people without bias based upon race, religion, nationality, gender, age, or sexual orientation. If you treat everyone equally, no matter what categories they may belong to, that is tolerance. If you discriminate against some type of person, that is intolerance.
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How to control the high voltage control in an industry?
Voltage stabilisers are the devices to control voltage. These are of 3 types i.e. VARIAC BASED,IGBT BASED and THERMISTOR TYPE.
These are classified according to voltage correction speed i.e. from 70 volt/second to 750 volt/seconds.
Power loss in open circuit test?
There is no power loss in open circuit test.
Actually there is iron loss also known as magnetic losses. These include hysteresis and eddy-current losses. This can be described as V1^2/Rc
Where V1 is the primary voltage and Rc is the resistance of the magnetic core.
Why emf does not depend on resistance?
Because emf is the very source of voltage, either chemical or inductive, an can be meassured at open circuit only so, internal resistance of the supplier is not affecting it.
What is a ball grid array used for?
A ball grid array (BGA) is a type of surface-mount packaging used for integrated circuits. BGA packages are used to permanently mount devices such as microprocessors.
Why the net resistance increases in series connection?
series network consists of components i.e resisters connected end to end. since their is only one path for the flow of current. but potential drop across each resister is different. so thats the reason that series network has maximum resistence then the highest resister in combination. the same amount of current passes through each resister.
What voltage will produce 0.20 A of current through a 3090 resistor?
Ohm's Law: Voltage is current times resistance.
0.20 amperes times 3090 ohms is 618 volts.
WARNING: This is also 124 watts, so do not attempt to duplicate this in the lab unless you have the appropriate equipment. In particular, an "ordinary" half-watt resistor will self destruct, causing a fire, if you try this.
Gaussian minimum shift keying - GMSK?
Gaussian Minimum Shift Keying (GMSK) is a frequency modulation scheme used in digital communication systems, notably in GSM (Global System for Mobile Communications). It combines the principles of minimum shift keying with a Gaussian filter to smooth the transitions between frequency shifts, which reduces bandwidth and spectral spreading. This results in a more efficient use of the available spectrum while minimizing adjacent channel interference. GMSK is known for its robustness and efficiency, making it suitable for mobile communications.
