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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
The measure of how difficult it is for electrons to flow through a circuit is called what?
The measure of how difficult it is for electrons to flow through a circuit is called resistance.
Another Answer
Resistance is not a measure of 'how difficult' it is for electrons to flow through a circuit. It is more accurate to describe it as a measure of whether a material can supportcurrent flow.
For example, it's incorrect to say that an insulator 'blocks' current flow. It's more accurate to say that it has an insufficient amount of charge carriers to support an electric current.
In what region of their characteristic curve are zener diodes operated?
Zener diodes are normally operated in their reverse breakdown voltage curve.
I thank that antalog time is the time on a analog clock, It makes since analog time on a analog clock.
SMD is an abbreviation for Surface Mounted Device.
SMD's take up less space on a circuitry board. Smaller components and smaller size of consumer electronics makes it easier to sell and use electronics where it previously was thought difficult.
As components shrink in size, they might also use less electricity (current). They may work faster and as size is smaller, the cost of mass-production is significantly smaller.
SMD's are however more at risk regarding Electromagnetic discharges as in EMP (Electro Magnetic Pulse) most commonly known from detonations of nuclear devices in the atmosphere. Such an EMP will in most cases render SMD electronic devices useless, where as older more sturdy electronics might survive depending on the proximity to the origin of the discharge.
In a normal AGC, even the unwanted signals gets amplified, But u dont want that to happen, so until the Input Signal strength reaches a threshold, the AGC feedback signal is not applied to the amplifier biasing circuit..
How does Ethernet handle error detection?
Each Ethernet frame contains a trailer with a cyclic redundancy check (CRC) of the frame contents. After reception of a frame, the receiving node creates a CRC from the bits in the frame to compare to the CRC value in the frame trailer. If these two CRC calculations match, the frame can be trusted as being received without error. The trusted frame will then be processed. A frame received with bad, nonmatching CRC's will be discarded.
Difference between avalanche and zener breakdown?
A: There is no difference except for a zener its breakdown is known and predictable. Avalanche breakdown is not predictable and usually happens at hi voltage and because of it if the current is not limited it self destroy the device
Is zener diode a linear device?
Zener diode is not a linear device... it is non-linear one.
Since linear devices are those devices which have linear characteristics(V-I CHAR.), or follows the Ohm's law i.e. voltage is directly proportional to current.
but in case of Zener diode ohm's law fails down. the V-I char. in both forward biased & reverse biased condition is non-linear. So. Zener diode is non-linear device
Why conductivity of n-type semiconductors is greater than p-type semiconductors?
because in n-type there is a real movement of a free negative charge(electrones not positive holes)
What type of device gathers and converts them into electronic form for use by the computer?
Gathers what? what is "them"?
Im going to assume you mean print documents in paper form.
The basic process is to scan the document and then use OCR (optical character recognition) software to convert the scanned image to an electronic document.
Depending on the scale of the project, there is hardware that can process thousands of documents as fast as you can feed it to the machine. In most cases the conversion process is imperfect because software cannot recognize bad or illegible writing as well as humans can. This is the reason that 'data entry' jobs are so readily available.
What is the Relationship between power factor and current?
When voltage and current waveforms are out of synch the power factor is reduced. In a pure resistance load the PF is 1. When inductance and capacitance is involved the PF is from 0 to 1.
Contrast the scr and the triac?
Essentially an Scr is a solid state switch that will only allow current to flow in one direction. A triac is essentially two scr's in Anti- parallel that allows current to pass in both directions.
What 3 things are required to induce a voltage in a conductor?
three things required for electromagnet are
hands
eyes
ears
have fun! lol
Is capacitor discharging time is equal with charging time or not?
The time constant is equivalent to 1/(R*C); since C (the capacitance of the capacitor) is not changing, yes, the charging and discharging times will be the same, provided the Thevenin resistance is the same as well - if you charge a capacitor using a AA battery, then remove the battery, and discharge through a resistor, you have changed the Thevenin resistance, thus the discharge time will NOT be equal.
Is a resistor bilateral element?
Yes, a resistor has two sides, and furthermore they are interchangeable.
What is the explanation for the vi characteristics of p-n junction?
The VI characteristics of PN junction diode when used as a diode rectifier are reverse bias and rectification is shown by an asymmetrical current flow.
