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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 can you increase or double electric power output electronically?
A: Well that is not possible. Someone can change the voltage up or down with no problem but never can it increase power by adding any kind of circuitry for the simple fact of % efficiency loss. If it could be possible then we have infinite power source available.
high impedance circit provides a varistor unit which has stabilising resistor which ll protect the relay from being operating for maloperations like through fault, CT faults whereas this varistor unit is provided internally in an numerical relay where the CT of class 5P can be used.
What is the importance of H-parameter of transistor amplifier?
In transistors, current gain plays a significant role. In h parameters, one of the parameters is hfe which is current gain. It is easier if the parameters chosen represent some significant properties of the device. Some other parameters of importance in transistors are input resistance hie and output resistance 1/hoe.
So it makes sense to analyse transistors with h parameters.
This is a parallel circuit, each of the parallel current paths draws a certain current, and the input current equals the output current, so the sum of all current through each path has to equal the total current.
What is bootstraping in darlington emitter follower?
Connecting a resistance btw the o/p and i/p of the amplifier to increase the i/p impedance is called bootstrapping..
What is a single tone message signal?
any signal having single frequency. ex: sin5t ,in this ex there is only 1 freq 5 rad/sec..... thats why its single tone msg signal.
How does capacitor improves the performance of a circuit?
This depends on what kind of circuit you have. Generally, you cannot just add a capacitor to a circuit and 'improve it'. Probably, though, you mean an amplifier, anf by improve, you mean improved frequency response. In a transistor amplifier, you sometimes want increased gain at higher frequencies. By adding a capacitor from the emitter to ground, you create a low impedance path to ground for the AC signal. This lowered emitter impedance increases the gain of the amplifier, for frequencies where the capacitor looks like a low impedance, or high frequencies.
Why would one wants to become a control system engineer?
A; I guess would be the challenge and possibly better pay. The design of a system differs from design of electronics since it is more of a concept in nature as opposed to known applications of design.
What is logic behind bodmas rule?
i THINK THERE IS NO LOGIC BEHIND BODMAS RULE. IT IS JUST A CONVENTION.
What is voltage divider circuit?
The two resistor voltage divider is used often to supply a voltage different from that of an available battery or power supply. In application the output voltage depends upon the resistance of the load it drives.
When diode is connected to ohmmeter What happens?
A: Depends on meter leads voltage polarity and the diode itself orientation to these polarity. One way is should show a low impedance + to anode Reverse the diode it should be hi impedance
Is resistance in a series circuit equal to the largest resistor in the series?
No. The resistance in a series circuit is all the resistor values added together. eg. If two resistors were in a circuit, one was 10 ohms and the other was 30 ohms, the resistance in the circuit would be 30 ohms.
Hope this helps!
Bare PCB Board
In PCB terminology, the term “bare board” refers to the state of a PCB before it receives electronic components or through holes. A bare board consists of the PCB’s substrate, metal coating, conductive pathways and patterns. Some industry experts call a bare board a PCB and an assembled board a PCBA.
Benefits of Bare Board Testing
Bare board testing in the PCB design process can lead to:
Cost savings: Extensive testing in early design stages can help you save on the costs associated with faulty assembled PCBs.
Streamlined production: By identifying issues in the prototyping stage, you can save time in later phases of production.
Issue resolution: Bare board testing will help you identify potential issues early in production while narrowing down each problem’s source.
What is compression signature?
A compression signature in the case of JPEG files is a signature embedded into a photo taken by a camera that is the signature of the camera that took it, or a photo editor (such as Photoshop) that compressed the image into a JPEG file. A program like JPEGsnoop can uncover compression signatures in JPEG files.
Why CMOS connected to VDD and NMOS to Vcc?
Error on schematic. All MOS is powered by Vdd and/or Vss (drain/source).
Only bipolar is powered by Vcc and/or Vee (collector/emitter).
What are the component of ohms law?
basically there are 2 component of ohm law 1 is current (I) and other is voltage(v).Current and voltage are directly proportional to each other.
If one increases other also increases and vise versa
.this give a new Quantity resistance(R).
V=IR
R=V/I
What are the operating regions of transistors and explain it?
There are three operating regions in transistor...(Transfer-Resistor)
1)cutoff region
2)Active region
3)Saturation region
Active region:
- It is the central region where there are curves and where slope is taken.
- it is the region where emitter-base is forward biased and collector-base is reversed bias.
Cutoff region:
- It is the region which lies below the curves. it is the region where the transistor is in OFF state.
- in this region both emitter-base and collector-base is reversed bias(i.e no sufficient voltage is applied so that the voltage does not break the DEPLETION region).
Saturation region:
- It is the region situated to near the active region near Y-axis.
- It is the region in which the both emitter-base and collector-base is forward biased.
Based on application the transistor is decided where to lie.
for example transistors are made to lie in active region to make it as amplifier.
when transistors are used as switch it is made to lie in saturation region(when switch is made as ON) and cut-off region(when switch is made as OFF).....
Thanks guys for reading this. please forgive me if there are any mistakes....
ANSWER: In actuality there is only one REGION The other regions are not operating regions but rather states. An operating region on a transistor is set up during design of an amplifier to transfer maximum undirstorted power to the load. This design is called BIAS
A: A buss is a voltage that supply all of the circuits involved into a particular electronics package. It really means the main source of power and it can be AC too. Englishmen call it the poke or rail in the States is BUSS
