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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 term describes signal interference that results from the motion of electrons in a wire?
Thermal noise
RFID size is normally determined by the size and configuration of the antenna, not the actual RFID integrated circuit.
Hitachi sells chips with low-performance internal antennas that are the size of a table salt crystal. Most RFID tags are between 20 and 100 mm in length/width and very thin.
What is wired communication system?
Wired communications is a broad term that is used to describe any type of communication process that relies on the direct use of cables and wiring to transmit audio and visual data. A classic example of wired communications is the traditional home telephone that is connected to the local telephone switch via wires that are ran from the home to the switch. While wireless communication solutions have become more common in recent years, the use of wired services remains common and is not likely to disappear in the near future
When was Under the Radar Over the Top created?
Under the Radar Over the Top was created on 2009-10-02.
Matched pair of transistors is particularly useful for?
A differential input stage employing matched pairs of field effect transistors provides a high input impedance, good dc stability and is sufficiently simple and robust for student use.
I like wearing fitflops and can definitely tell the difference once I have been wearing them. Here is a great review to read: http://www.fastfreeweightlosstips.com/2011/03/21/can-wearing-fitflops-help-me-lose-weight/
What is the purpose for mapping a drive?
Mapped network drive. In Windows networks, an external resource has the form "\\MyServer\MyFolder\MySubFolder\MyFile.doc". The folder part, "\\MyServer\MyFolder\MySubFolder", can be assigned ("mapped") to a drive letter, for example, "M:"; in that case, you refer to the document as "M:\MyFile.doc".
Mapped network drive. In Windows networks, an external resource has the form "\\MyServer\MyFolder\MySubFolder\MyFile.doc". The folder part, "\\MyServer\MyFolder\MySubFolder", can be assigned ("mapped") to a drive letter, for example, "M:"; in that case, you refer to the document as "M:\MyFile.doc".
Mapped network drive. In Windows networks, an external resource has the form "\\MyServer\MyFolder\MySubFolder\MyFile.doc". The folder part, "\\MyServer\MyFolder\MySubFolder", can be assigned ("mapped") to a drive letter, for example, "M:"; in that case, you refer to the document as "M:\MyFile.doc".
Mapped network drive. In Windows networks, an external resource has the form "\\MyServer\MyFolder\MySubFolder\MyFile.doc". The folder part, "\\MyServer\MyFolder\MySubFolder", can be assigned ("mapped") to a drive letter, for example, "M:"; in that case, you refer to the document as "M:\MyFile.doc".
Why do you need R-L and R-C circuits?
A strange but enlightening question. One can view ALL ELECTRONICS as making and modifying V/I curves. All the circuits and tools you have seen are ways of doing this.
What are the uses of pyramidal horn antenna?
GAND MARAO
pyramidal horn are antennas in which the walls of the rectangular wave guide are flarredin both e-plane & h-plane directions.
applications:-
--> when there is a high gain requirement.
--> when there is high directionality requirement.
Hi,
Open reel tapes are equivelent to tapes like used on the older reel to reel tape recorders. They used to have open reel tapes for audio and video recorders. Many are still in use today.
Open reel tapes had to be hand threaded through the tape transport whereas a cassette tape is self contained and the transport handles all the unloading and loading functions.
Hope this helps,
Cubby
What happen if the series resistor in a forward-biased p-n junction is short-circuited?
The junction (diode or transistor) will be destroyed.
The current, if connected to a voltage source that can supply the needed current to (R1+R2) R3, will be unchanged.
If the source cannot supply the needed current, the terminal voltage will decrease, which will change the current flowing through R1 and R2.
From your description, this sounds like it is a sine wave offset to 10A, so the peak is at 20A, and the min is at 0?
For this case, you have 10A DC (RMS) wave and a 10A Peak - neutral AC wave; The RMS value of the AC wave is: 10/2*sqrt(2) = 3.54A.
So the RMS amplitude of this wave is 13.54A.
The 74138 is a 3 to 8 decoder. When enabled, one of the 8 outputs is low, based on the binary value of the 3 inputs.
What is the hp of an animatics SM3420D smart motor?
0.004
It has 3.05 Nm
that converts to
3.05 Nm = 2.25 Lb / Ft
which converts to .004 hp
EDIT: This answer is entirely wrong. Power is torque multiplied by speed. Your answer is dependent on the voltage supplied to the motor as well. According to Animatics' torque-speed curve on the motor datasheet, this motor has a maximum power of approximately 460 Watts at 48 Volts (0.62 Horsepower).
-Brian
What distinguishes autoregulation from extrinsic regulation?
Auto regulation (intrinsic) is when a cell, organ, or organ system automatically adjusts itself in response to a change in the environment. Extrinsic regulation involves the nervous and/or endocrine system detecting a change and sending a signal or releasing a chemical to facilitate change in another organ system, organ, or cell.
Compare satellite and fiber optics communication?
Fiber optics is quicker and has higher bandwidth but for long distances requires more infrastructure (but it is on the planet so is more easily repaired).
Satellite communications is slower with lower bandwidth and noticeable delays, the long range capability is greater but parts of the infrastructure (the satellites) are very expensive to replace and repair.
What is the difference between range and span?
Range: The region between the limits within which a quantity is measured, received ortransmitted. It is expressed by stating the lower and upper range values
Span: The algebraic difference between the upper and lower range values expressed in the same units as the range
Is potentiometer and Thermistor are variable resistors. How please explain?
A: A potentiometer is a manual device to change the resistance A thermistor changes as a function of environment temperature
What is the current of 1MVA transformer?
This depends on the voltage, and whether it is a three phase or single phase transformer.
What are some types of low voltage cables?
Below 24 volts: low voltage cables are like other cables but without so much insulation. They are made of copper and insulated with pvc, usually only one layer. They are most commonly used in cars.
I think you mean the meter is rated at 1K ohms per volt. It means that with a series resistance designed to give FSD at any required voltage, the total series resistance must be 1000 ohms per volt (100K ohms for 100volts) . This is because 1K ohms per volt is just another way of saying that the full scale reading occurs at 1mA current. In that case a full scale deflection for 100 volts applied, 1mA is obtained with a total resistance (meter + added resistance) of 100 kOhms which is your loading resistance.
It might be.
Or it might not.
You need to specify the transformer's turns ratio or its impedance ratio, and th eload on the secondary.
voltage is devided only in series circuit and is the same at the parallel circuit
