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
Which dc motor gives above 20kg torque?
torque is not measured in mass units
20kg force = 20kg * 9.8meters/sec/sec
or 20Newtons
ive seen torque wrenches in kg-meters as well as newton-meters and foot-pounds
a pound is 32.2 slug feet/sec/sec
most power drills have dc motors if you get one with a large chuck 3/4" or so
it will have 20kg meter or 400ft lb ( brand name holehog for example)
older locomotives have dc motors on each axle usually about a 1-1 ratio gearing
300-500Hp for each motor
newer locomotives can use ac motors with the advent of variable frequency ac drives - although it takes a bit more power to achieve the same starting torque
What is the difference between sampling gates and logic gates?
A logic gate is a computer circuit with several inputs but only one output that can be activated by a particular combinations of inputs, a diagram that shows the major gates can be found here.
An example would be if you have 2 wires going to an AND gate and only 1 wire has a current (is on, 1) and the other one is 0, then your output would be 0 as you need wire 1 AND wire 2 to have a current, for the output to be 1, on.
A sampling gate, on the other hand is a circuit that produces an output only when first activated by a preliminary pulse. So if you have a current going through a wire and through a sampling gate, your output would be 0, unless you program the sampling gate to let the current through.
I'm sorry if this is a slightly plain answer, but if you would like more reading, then go to the Wikipedia.
Can ac pass through capacitor?
AC can pass through a capacitor. The higher the frequency of AC the lower the reactance (like resistance). The current and applied voltage are 90 degrees out of phase the current leading the voltage by this amount.
low and high pass filter
(Electronics) Resistor placed in the emitter lead of a transistor circuit to minimize the effects of temperature on the emitter-base junction resistance and its resistance is called swamping resistance.
What is minority charge carrier?
In semiconductor devices there are two types of charge carriers: electrons and holes. In N-type doped semiconductor the majority charge carriers are electrons and the minority charge carriers are holes. In P-type doped semiconductor the majority charge carriers are holes and the minority charge carriers are electrons.
Some kinds of semiconductor devices operate using minority charge carriers in part(s) of their structure. The common bipolar junction transistor is one of these, they are sensitive to a phenomenon called thermal runaway because additional minority carriers are produced as temperature increases. (field effect transistors however operate using only majority carriers and are thus not sensitive to thermal runaway)
A very very tiny amount of the current that would normally flow through the resistor instead flows through the voltmeter, allowing it to make its measurement. For most purposes this very very tiny amount of current can be completely ignored.
How do you find the resistance of a parallel circuit with n identical resistors?
We have n identical resistors, call them R1, R2 etc up to Rn. All have resistance R.
Resistance of the whole circuit
= 1/(1/R1 + 1/R2 + ... + 1/Rn)
= 1/(n*(1/R))
= 1/(n/R)
= R/n
So it's the resistance of one resistor, divided by the number of resistors.
What are the different generating voltages?
it varies from power station to power station in vtps we have 15.75 kv
Why digital signal is better than analog signal?
the digital code is binar. so if you get a signal it is absolut.
analogue signals can be interfered or altered through interferation.
If you are saying that the Zeners are connected in series, the answer is Yes.
The answer you need is found in "Ohms Law." It is expressed like this: Current = watts divided by volts Watts = Volts multiplied by current Volts = Watts divided by current. I recommend you look into the hobby of Amateur Radio and put your knowledge of electronics to a fun use. My wife and I are both 'hams' and love the hobby!
What is static converter can a power supply of computer is static converter?
A single phase supply can operate a three phase motor with a static converter. No a power supply of computer cannot be fed through the static converter.
- electric motor
- relay coil
- speaker coil
- speedup coil (in vacuum tube or discrete transistor digital logic)
- etc.
Does a mobile phone vibrate when being charged?
No it doesnt and wont vibrate when it is being charged.
What materials are used to make asimo the humanoid robot?
Motor chip plastic camera cable power source
How do you measure inductance?
You can use a LCR (Inductance, Capacitance, Resistance) meter if you can find one.
Is odd or even harmonic distortion more pleasing to the ear?
Scroll down to related links and look at "Harmonics and overtones in comparison" or scroll down to related links and look at "Calculations of Harmonics from Fundamental Frequency". http://www.sengpielaudio.com/calculator-harmonics.htm Besides the fundamental "even harmonics" bring here the added tones: c , c, g, c, e, g , bflat, c :-) and "uneven harmonics" bring here the tones: g, e, bflat, d, f#, aflat, b ;-( Which of those both rows will be more pleasing? You can see it. Even harmonics sound more brilliant. Don't mix up harmonics with overtones! Even harmonis are uneven overtones and uneven harmonics are even overtones. Better stay with the word harmonics.
Is electronics engineering a BA or BS degree?
Bachelor of Science usually. It might also be Bachelor of Engineering, Bachelor of Technology or Bachelor of Applied Science, depending on the school with the major field of study , or "major" in Electrical Engineering or Electrical and Electronic Engineering. Pay careful attention in your math and physics classes if you're interested in getting a BSEE degree Not allengineers are with a BSEE degrees An education does not substitute for experience in the field. A degree is mandatory for some company if involved with design for the government But a small company would Rather hire more on experience as opposed to education. In this field reasoning power is more valuable the formal education.
What is meant by 220 volts AC?
In US household electrical service there are two "hot" 110 volt wires and one ground. Only one hot wire is connected to a normal outlet or light fixture. To wire a 220 volt alternating current outlet, both hot wires are connected to the outlet. This is used for appliances that need more power than is provided by 110 volts like electric ranges, clothes dryers, air conditioners.
What is the function of an electrical load of a circuit?
its the alternatingg current
AnswerA load is any device, or group of devices, that draws energy from an electrical supply.
For example
- the filament of a flashlight is the load supplied by that flashlight's battery.
- a loudspeaker is the load supplied by an amplifier.
- your residence represents a load to your electricity supplier's distribution transformer. a whole geographical area represents the load supplied by the electricity grid.
In another use of the term, we say that a generator or transformer is 'loaded' when it connected to a load, but is 'off-load' when it is operating but not connected to a load.
