0
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 applications of a capacitor?
A capacitor is a device that stores electric potential energy and charge. Unlike batteries, capacitors do not involve chemical reactions. They merely encompass the movement of charged particles, so they can be charged and discharged very quickly. This important property gives them many useful applications.
They are used as electrical flash units in photography, lasers, air bag sensors, radio receivers, and television receivers. Most importantly, they are used in alternating-current circuits, which play a crucial role in most household and industrial power-distribution systems.
What is instrumentation commissioning?
Instrumentation commissioning is the total engineering services necessary to test a process plant instrumentation before it is transfered to operation. Comissioning services include calibration of instruments, solution of puch list items, loop tests, configuration of flow computers, documentation and other associated services.
the matched load is aresistive load which at (Q=0)which generated from the generator mesur the load at( Ql=Qc)and at it we get high efficancy as losses of T.L P1=mesured P2=(3^.5) V2I2cos fai delta p=p1-p2 eff=p2/p1*100>>>>>>high
What is advantage of split muff coupling?
1. Muff Couplings have a high torque capacity and zero-backlash. They suit
applications when misalignment is neither present or desired.
2. It can be removed or disassembled witout disturbing the shafts.
What is the base spreading resistance?
base spreading resistance is the resistance which occur at the base of transistor dis is becoz of varying base voltage
What is the minimum voltage required to turn on a pnp transistor?
If it's a germanium transistor, 0.3 volts. If it's the more common silicon transistor, slightly more than 0.6 volts.
Metal Oxide Semiconductor. Usually used when referring to a specific type of transistor which uses this type of semiconductor material: the Field Effect Transistor (FET).
Pls tell you if the admission list for futo is out?
why is it that many universities in the federal have resumeed lectures only federal university of technology owerri haven't, why? please tell me i want to know. or do they think that we are foolish for chosing them as our first and second choice?
What are the advantages of digital modulation over analog modulation?
1)digital modulation can easily detect and correct the noise. where as analog modulation has little complexity 2)security is more in digital modulation 3)digital modulated signal can traverse a long distance compared to analog modulation
Why gate circuits are isolated from the main circuit?
Gate circuits should be isolated from the main power circuit to avoid any damage to the power circuit if gate is damaged.
How do you build a door sensor alarm system using a simple circuit board?
I bought:
reed switch
LED
Buzzer
Button (On/Off)
Resistor (if necessary)
I connected:
<---Button------Reed switch------Resistor (if necessary)------LED------Buzzer---Batteries--->
A pure metal is any metal that has not been alloyed or joined with any other metal or synthetic material. Lead is a pure metal because it is an element and composed of a single kind of atom.
What are some applications of logic analyzer?
Many digital designs, including those of ICs, are simulated to detect defects before the unit is constructed. The simulation usually provides logic analysis displays. Often, complex discrete logic is verified by simulating inputs and testing outputs using boundary scan. Logic analyzers can uncover hardware defects that are not found in simulation. These problems are typically too difficult to model in simulation, or too time consuming to simulate and often cross multiple clock domains.
Field-programmable gate arrays have become a common measurement point for logic analyzers
Why is fiberglass a good insulator?
A: Glass is a very good insulator and fiber glass are just fibers of glass. VERY dangerous if inhaled because of it.
If a parallel circuit shorts at the battery will the entire circuit short out too?
If at battery,parallel circuit shorts then equivalent resistance of circuit becomes approximately 0 Ohms,and therefore as current follows low resistance path infinite amount of current due to low resistance will flow through the wire so,entire parallel circuit will short out,but wire will burn and battery may get damaged.
Name:Sumit Karnik.
ASIC is an Application Specific Integrated Circuit. In other words, an IC that was designed and nade just to do one specific job.
Why do you use waveguide instead of coaxial?
Coaxial cable is an electrical cable consisting of a round conducting wire, surrounded by an insulating spacer, surrounded by a cylindrical conducting sheath, and usually surrounded by a final insulating layer.
waveguide may refer to any linear structure that conveys electromagnetic waves between its endpoints.
Also known as a serial cable; typically with 9 or 25 pin D-sub connectors.
How does the variation of excitation of an alternator correct power factor?
The rotor of an alternator need a DC voltage applied to it to generate a magnetic field, this magnetic field will generate the AC power in the AC windings.The AVR(Automatic Voltage Regulator) is regulating this DC voltage so that the magnetic field is strong enough to maintain the output AC voltage. As soon as more current is drawn from the output, this output voltage will drop and a stronger magnetic field is needed to sustain the output voltage, so the AVR step up the exiting voltage to get a stronger magnetic field to compensate for the voltage loss in the AC windings.
How do you solve for voltage drop in a complex RC circuit for each individual resistor or capacitor?
You need to know the frequency of operation. Then 1. use 1 / ( 2 pi f C ) to find the reactance of each capacitor 2. substitute these reactances for each capacitor in the network. 3. treat this as a resistive network. if you still have trouble, simplify by first replacing each instance of 2 in parallel by the equivalent single resistance, then each instance of 2 in series. If you still can't do it at this stage, apply Kirchoff's laws.
Take your pick:
P = V x I (Power = Voltage x Current)
or:
P = V2 / R (Power = Voltage2 / Resistance)
or:
P = I2 *R (Power = Current2 x Resistance)
(the last two equations come from combining the ohms law equation R=V/I with the power equation P=VxI)
In the question above you have resistance and current therefore:
P = I2 *R = 0.0052 x 8.2k = 0.0052 x 8200 = 0.205W = 205mW
What is the range of frequencies?
there are an infinite range of frequencies limited only by the mechanical limitations of the medium creating and transferring it.
