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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
Who invented the dynamo torch?
The dynamo torch was invented by Ming-Chih Wei. The dynamo torch is a flashlight that stores energy in a flywheel.
Newer heard the word "impedence".
An output impedance is an AC resistance at the output of an electronic device.
What is the advantages of digital analog converter?
The advantage of Digital to analog converters
A digital to analog converter has drawbacks, but it has advantages of allowing signals to be controlled and processed to the best of speed and precision with the use of a micro processor. One can generate a perfect sine or triangular wave with a microprocessor and convert it into a real analog wave. One can process audio with a CPU or DSP and convert it back to audio. Once you have audio inside a processor the sky is the limit to what you can do with it and with custom firmware.
Then the use is also obvious for precision digital instrumentation such as reading a load cell, thermo-couple or any sensor, converting it into an industry standard 4-20mA , 0-20mA or 0-5V or 0-10V output for PLCs or other instruments to interface with.
Digital to analog converters may offer an economical and compact way to have precision signals. For a 24bit resolution, an 16.7million divisions of it's full scale deflection can be expected and perform thousands of conversions per second.
The drawbacks are that they don't always produce perfectly smooth outputs, which may be subjected to some quantisation noise and the use of external filters may be required in some cases.
Very nice technologies are available these days that allow SPI, I2C serial interfacing with high speed, high resolution and compact SMD chipsets at economical prices.
The thing to note is that a digital to analog converter is rather useless without a micro processor to control and feed it with data and commonly they are build into DSP (digital signal processors) already.
How do you burn the software on a 8051 microcontroller?
You will need a 8051 device programmer that connect to a PC with software to drive the programmer
How many hemispheres are formed by the grid system?
A: Hemisphere means half of a sphere. REPHRASE THE QUESTION
One description for mcc is motor control center. It is an electrical panel or cubicle which houses the one electrical incoming feeder several outgoing power feeders.
Red wire from a regular DC voltmeter should be connected to :
Increases with length and connections.
Different between power transistor and transistor that used in small signal?
Power transistor can conduct large amount of currents through it, more than small signal transistor. power transistor has a vertical structure and small signal transistor has horizontal structure.In power transistor quasi saturation region is present which is absent in the small signal transistor. In power transistor there is a inculsion of drift layer which is not there in the small signal transistor. Power dissipation is less in power transistor and it is more in small signal transistor.
b.v.polytechnic,vasai
pushkar vaity.
Pseudo-random or random function on assembly?
WHY DO YOU NEED TO KNOW THE ANSWER ANYWAY. LOOK SOMEWHERE ELSE.LIKE GOOGLE
What is a roll off filter of a microphone?
The roll off filter removes low frequencies. Usually at about 75 HZ and bellow.
E1 = 4.44 f N1Øm (for primary)
E2 = 4.44 f N2Øm (for secondary)
What is com terminal on a multimeter?
The com is your common terminal also the negative terminal where the black probe is pluged in. normally used on meter with 3 or more connectors and only the red probe change position
What is prncipal of transducer?
The basic principle of a transducer:
A transducer which converts a physical quantity to the electrical quantity.
What does transistor to transistor logic mean and what are its uses?
A: TTL-DTL-RTL are family of gates called by the name. Example TTL means Tran. trans. logic. It refers to the inputs for these gates as the type.
T= Transistor
D=Diode
R=Resistor
While they do perform the same function their characteristics in performance varies greatly.
What is mean by SOWA for cord?
Cord/Cable is resistant to Sunlight, Oil, Water, and the -A is a Flexibility designation.
Symbols of the electric circuit?
- there is a symbol of bulb,galvanometer,voltmeter,ammeter,gong,paperclip,switch,wire,solenoid,bulb and armature
Contact potential cannot be measured?
A: SURE it can while open it will measure the potential when closed it will measure the small voltage drop due to the resistance if any.
