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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
What type of circuit in which voltage is constant?
A mercury battery will provide constant voltage. A voltage regulator circuit will also.
How do you charge an RC helicopter-ty901?
1.Charged by the transmitter
2. Charged by USB cable included (have light indicator - light will on when charging
3. Charging time: 30-35 minutes
What is the inductance of a circuit containing two 10 mh inductors connected in parallel?
Inductance in parallel is the reciprocal of the sum of the reciprocals of the individual inductance's.
LPARALLEL = 1 / SummationI=1toN (1 / LI)
How can a copper wire b silver on the outside?
Its probably not silver. Its probably tin plated to make it easier to solder.
Are diodes only used in a dc circuit?
There are lots of diodes - a "diode" is simply a device that has two electrical connections.If you refer specifically to the rectifying diode, it is used to convert AC current to DC current - so, it is used in a circuit that has BOTH AC and DC.
This question is not understandable. You can use a step up transformer to increase voltage; you can't increase voltage by producing electricity at a lower voltage; this will result in current flow into your generator, not current flow out (similar to operating a generator in the leading mode).
Please explain further under "discuss question".
Can you use a 9.6 volt battery in place of a 7.2 volt in an RC car?
You could but the car would not run properly and would be very slow. I would highly advise against this as it might also damage the motor.
What is antimony What is boron?
Both are some of the elements used as dopants in the making of semiconductor devices.
What is the difference between a microwave and a radio wave?
Microwaves are radio waves of very high frequency/ very short wavelength.
The exact boundary is not well defined, but frequencies over about one gigahertz (1 000 000 000 Hz) are generally considered "microwave". This boundary, as a wavelength, is anything shorter than about 30 cm.
The top end is also loosely defined, as extremely short "radio" waves eventually become infra-red radiation. "Microwaves" extend around 100 gigahertz in frequency, equal to one millimetre (1/10th of a centimetre) in wavelength.
The region between microwaves and infra-red is commonly known as "millimetre/millimetric" waves.
What are the limitation of crystal oscillators and why?
about 100mhz upper limit
this is a mechanical vibration in a piece of quartz
sound travels about 1000ft a second
1 ft crystal is 1000 hz
1/8 inch 1Mhz
0.0002 in = 1Ghz
crystals in about 30Mhz are generally 3rd harmonic so perhaps .040 " is a practical limit ... experimenters have made them thinner but its usually a thin flat spot in the middle of a thicker piece
the crystal in your watch is of tuning fork variety held at the edge swings side to side so it doesnt need to be 3" thick
they settled on about 1/4" long and divide by 32768 in a ripple counter so you can see seconds
a meter long or so on the tuning fork crystal ought to give seconds directly
would be fine for a wall clock maybe
there is also a power limitation quartz breaks if bent beyond its elastic limit
has nice stability till then
Is it possible to cut-off the mains power supply using infrared sensor?
IF the sensor is part of a switch yes.
Why intrinsic semiconductor acts as an insulator at 0K?
room temperature instrinsic s.c as a conducter
because DC generator generates generally generate DC power but as it has slip rings which convert it into ac output power
What are the standard values for capacitors and inductors?
Capacitors come in values from picofarads (10-12 farads) to farads. They can be had in tolerances from .1% to 20%. For a list of standard values in 10% increments, go to http://www.ecelab.com/list-capacitors.htm
Inductors can be had from nh (nanohenrys) to henrys in tolerances from 1% to 20%. For standard values in 10% increments, go to http://www.rfcafe.com/references/electrical/inductor_values.htm
What does a slide switch do IN ELECTRONICS?
Slide Switches work on the principle of connecting disconnected parts to each other. The 'switch' connects two parts allowing the current to pass through it
What is the difference between MSC and MSS?
MSC is basically the older version for switching system where both user part and the control part exist on single node.
MSC is now split into MSS and MGW
MSS does the contol plane function and helps in establishment of call. Once the call is establised MGW take care of its continuty.
Avalanche breakdown is a phenomenon that can occur in both insulating and semiconducting materials. It is a form of electric current multiplication that can allow very large currents to flow within materials which are otherwise good insulators. It is a type of electron avalanche.
The Avalanche process occurs when the carriers in the transition region are accelerated by the electric field to energies sufficient to free e- h pairs via collisions with bond electrons.
What are facts about the wind turbine?
Apparently Wind Turbines can make Bat's lungs explode!
In the united states they kill up to 50 golden eagles each year!
How can electronic components be made so small and powerful?
Its due to all the technology now days and rent upgrades and advancements in technology
Is the demand for audio engineering high?
No. Because of the advancements in computer recording anyone can record their music at home on their computer. Because of this recording studios are seeing less and less artists come in to record. This means smaller studios can't afford to keep running. Those that can stay in business are having to cut staff.
What is the basic building block for computer circuitry?
Integrated Circuit is not exactly correct.
The circuit contains 100s and even 1000s of Transistors. The transistor is the basic building block.
