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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
Sensitive devices like microphones working at verylow level can and will pick extraneous signal from many sources solution is to shield the cable so the signal will be hard to influence a double shield scheme is desirable whereby the interference will be routed to ground
In telecommunications, where a single physical wire can be used to carry many simultaneous voice conversations, worldwide standards have been created and deployed. E-carrier system, which is revised and improved version of the earlier American T-carrier technology.
The line data rate for E1 is 2.048 Mbit/s (full duplex) which is split into 32 time slots, each being allocated 8 bits in turn. It is a ideal for voice traffic because voice is sampled at the same 8khz rate so E1 line can carry 32 simultaneous voice conversions.
How do you change the frequency on a radio controlled car?
To change the frequency on a radio controller car, you change the crystal in the transmitter and receiver.
ASIMO stands for Advanced Step in Innovative Mobility. It looks like an astronaut and is a truly amazing humaniod robot invented by the Honda Corporation. Through public appearances, seminars and workshops, it is used to inspire engineers of today and tomorrow. After 20 years of research ASIMO can, with a natural human type movenents, walk on amost all uneven surfaces and slopes, climb stairs, run, and turn smoothly. It can obey basic spoken commands and recognize faces that it knows. It can recognise and name objects, and reach out and grasp them. By mapping its surroundings with camera 'eyes' ASIMO can avoid moving and static objects. Because of it great advances in the understanding of human movement have been made and as a consequence, significant developments in animated prosthetic limbs.
You need the ability to receive frequencies in the range of 800 - 1000 MHz.
When you start tuning that range, you'll start hearing things.
But only from cellular systems that are still using analog transmission. You can't
afford the hardware you need to eavesdrop on the digital systems, without some
serious government financial and technological assistance.
Normal operation of the transistor collector diode has to be?
Reverse-biased
---from the book of Malvino
What Is The Difference CT and PT?
A CT is used to measure current, and is NOT referenced to ground, and has very low primary impedance. A PT is used to measure voltage, is referenced to ground, and has a much higher impedance (since it is referenced to ground).
120 volts X 13 amps is 1560 watts.
List four classes of operation of a transistor amplifier?
Stop asking homework questions.
Class A -Best Audio Sound
Class AB - between A and B
Class B - (Slight crossover noise)
Class C - Best RF Amp
How does High and Low voltage cut out circuit works if voltage varies?
I assume you mean - 'Why does a circuit fail to work if the operating voltage is too high or too low?' A certain specific voltage is needed to overcome the natural resistance in circuit components. For instance in simple transistors, this is 0.7V to get the transistor to switch on and 1.4V is lost across the switched junction. This is why may circuits operate at above 3V. The rest of the circuit is designed to operate at the specified voltage and if you go too high, too much current will flow through the circuit and it will fail in the same way a fuse will blow if too much current is passed through it.
HeadquartersPlaya Vista, Los Angeles, California
The company was founded in 1983 in Hawthorne, California, by Founder and Chairman Chet Pipkin.
Belkin also has major offices across the globe, such as in the United Kingdom, the Netherlands, Hong Kong, Brazil, China, India, France and Australia and a distribution center in Indianapolis, IN.
How is a ventricular shunt inserted?
The ventricular shunt tube is placed to drain fluid from the ventricular system in the brain to the cavity of the abdomen or to the large vein in the neck (jugular vein).
How many directors and reflectors in Yagi Uda antenna?
yagi udda antenna has only one reflector...but it has many directors...depending upon gain and efficiency...the length of reflector is normally...more than one-half of wavelength... and directors have a length less than one-half of wavelength...
How can a dead weight tester used to calibrate a gauge pressure?
Place the gauge inside a sealed piston. Place the weight on top of the piston and read the pressure from the gauge. The force exerted by the weight multiplied by the area of the piston will give you the actual pressure exerted on the gauge. Using SI units. A 5 kg weight placed on a 0.25 meter diameter piston will create a pressure of around 1 pascal (Nm^2). 5N*Pi*0.25m^2.
Which is fastest to slowest - CACHE memory - RAM - virtual memory - buffer?
- CACHE memory is a very highspeed RAM coupled with CAM, placed very close to the CPU so that data and instructions that were recently read from RAM will not have to be reread when again needed within some short period of time since last read.
- RAM is randomly accessible memory, it can be fast or slow depending on its implementation and the technology used.
- virtual memory is a rather slow simulation of RAM using OS software, special memory management hardware, and a reserved swap area on a harddisk. Its advantages include: ability to run programs requiring more RAM than the machine physically has, every program can view itself as being the only one using the machine, isolation so that one crashed program will not shut down the entire machine.
- buffer simply refers to any memory device that temporarily hold information generated by one unit before it can be consumed by another unit. Some buffers are very fast, some buffers are very slow, some buffers hold only a small number of bits (maybe even only one bit), some buffers are massive RAM or FIFO memories.
Can a fuse take the place of a diode temporarily?
No - a fuse is designed as a safety device - to operate within a specific range. It performs a completely different function to a diode.
Why in common collector amplifier however you change value of resistance not amplifier in voltage?
The question does not quite make sense. It sounds like you are asking why does changing the emitter resistor in a class C common collector amplifier not affect the output voltage? If so, the answer is that the common collector is an emitter follower, meaning that the emitter will follow the base, less the base-emitter junction voltage, within the limits of hFe. The resistor is simply there to ensure output biasing when the base voltage goes low.
What exactly is bandwidth monitoring?
Bandwidth monitoring is monitoring the amount of data and the speed that it is whether being uploaded or downloaded between the transmitter and the user. It is done to prevent people using far more than their share.
How do you calculate the time constant in a series resistor?
A resistor by itself has no time constant. For a circuit to have a time constant it must contain either capacitors or inductors.
What is Time.DIV on the oscilloscope?
Time . Division.
Varies how the divisions on the time scale are applied.
Changes the speed of the sweep.
Each division is equivalent to 1millisecond, 5 millisecond, 10 millisecond etc.
How do you assemble or disassemble CPU?
In early computers that were made with vacuum tubes, transistors, or simple integrated circuit chips you could do this. However since the development of the microprocessor this has become impossible, as the CPU is entirely inside one integrated circuit chip.
In modern microprocessors the CPU is actually only a tiny part of that microprocessor chip, sometimes less than 1/10th of the circuits on the chip which now typically includes: memory management, input/output devices, ADCs, DACs, etc. Also multicore microprocessors contain several independent CPUs on the one chip (as many as 16 CPUs in some chips).
What happened to the speed of computers as they moved from first generation to fifth generation?
The speed of computers increased from one generation to the next generation, and to the next generation, and so on.
