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Electronics

Electronics are a branch of technology and science that deals with the control of the flow of electrons.

3,725 Questions

Draw the pin diagram of and gate?

The pin diagram of AND gate means the pin diagram of IC 7400. New software came handy to draw such complicated diagrams. You can go to the link in the "Sources and related links" down below and download the smartdraw tool where you can drag and drop such ready made shapes.

Corel draw graphic suite is another such tool.

Which vacuum cleaner used for electronic panel cleaning?

3M Produces an electronic Vacuum cleaner. Just google 3m electronic vacuum cleaner and it will show up. Do not confuse this for being safe for cleaning live circuits. It is just ground protected to not short out circuitry.

What are the applications of 4 bit adder and subtractor?

An adder-subtractor is a circuit capable of subtracting or adding binary numbers. The application of a 4-bit adder and subtractor is for use as part of the core of an ALU, or arithmetic logic unit.

How would you respond to the following philosophy about project planning I don't like to develop and commit to detailed project plans because they limit my flexibility and document estimating errors?

Detailed project plans are only necessary if you have a sponsor, stakeholders, project team members, customers, a specific scope, a planned delivery date, or a budget. If the only person you have to answer to is yourself, then you don't have to manage anyone's expectations, and you're free to express your inner "Ed Wood." You might remember Ed's classic film, "Plan 9 From Outer Space," widely considered the worst film ever made.

Wood used a minimal script, and his cast and crew rarely understood what he was trying to achieve. He used a pie plate for a flying saucer and shot much of his footage in public places, where the reactions of passers-by got included. When his star, Bela Lugosi, died in mid-shoot, Ed replaced him with his wife's chiropractor, who was half a foot taller and didn't look anything like the well-known actor; he was instructed to hold his cape in front of his face so only his eyes were visible.

If that's what you're going for, knock yourself out, but you might want to think about how you'll describe that in your resume, before you have to go out looking for a new job.

What is parasilic capacitor?

a parasilic capacitor is a natural capacitance that occurs in all things this is noticeable in incandescent lamps by when you turn the lamp on there is a small delay for it to turn it on

Limitaions of k map?

why using k map the rule is that the extra overlapping should not done .But in some case this may cause the problem in combinational logic that problem are called 'Hazards' and it can only overcome by using overlapping of k-map.

Who is responsible for the safety in electronics laboratory?

The man which is performing practical is totally responsible for safety in electronics laboratory - the following precaution should be consider before performing operation on electronics laboratory.

1> Ground the instrument.

2> use proper wire for current carrying conductor used in wiring.

3> do not touch the capacitor terminal they may give you shock discharge them before touching it.

Who did Motorola ask permission to use the word Droid?

The "Droid" trademark for which Motorola was using under license was originally from Lucasfilm (which everyone knows now that it's been acquired by Disney) in their "Star Wars" franchise.

What are the recent advances in automotive electronics?

Ninety percent of innovations in modern cars are based on advances in electronics. Many developments enhance the perceptions of drivers and help them make better decisions faster, thus keeping them safer. Microtechnology is helping reduce the risk of losing vehicle control. Stability control features help prevent rollovers. An adaptive cruise control systems are in the works. They regulate driving at low speeds. This is great in heavy traffic, and cuts back on the driver's shifiting from braking to acceleration. Biometric technology will facilitate automatically measuring the comfort level of anyone in the vehicle, and helping make optimum seating adjustments, and air heating and cooling adjustments. GPS systems have obvious benefits. Other systems can now warn you if a tire is deflating. We are, however, waiting for something more intelligent and relevant than that "Check Engine" light, which usually has nothing to do with the engine per se. Radio tuning is already almost all digital, making hands-off tuning possible. Built-in connectors for music players and cell phones are becoming common. The customer will usually only pay for practical features that enhance the driving experience and driving safety, so there are some possibilities that may never be implemented except in the most costly luxury vehicles. In the end, computers, microtechnology, LCD's, LED's, and fiber optics have revolutionized the automobile. This article is an edited and modified version of the following news article: http://www.theoaklandpress.com/stories/102804/bus_20041028013.shtml

Why indirect band gap material is used for manufacturing LED's?

Optical sources like LEDs use direct band gap so that conduction band electorn can recombine directly with a hole in valence band .

What is a SSBSC signal?

Single Side Band Suppressed Carrier. This is a modification of AM (Amplitude Modulation) that both reduces required transmitter power and signal bandwidth. The carrier is first modulated by the signal the same as in ordinary AM, then is sent through a bandpass filter to remove one sideband and the carrier. To demodulate it and recover the original signal the receiver must reinsert the carrier using a BFO (Beat Frequency Oscillator) and Mixer.

Why is it that your boyfriend would rather text you all the time than talk on the phone when talking on the phone is something he use to always do with you?

Because you let him. Guys are lazy. They will only get worse unless you set them straight. You are what I call "settling" don't let him do anything that bothers you. Basicly, he's gotten bored, not neccesaraly with you, but some guys just don't like talking on the phone. If he won't call you, then just say you ran out of text messages and you will just wait to see him next time, he will feel bad if he texts you, and you will still get to have a good conversation. What do you say?

Oh! This relatonship isn't long distance is it?

What is the No Electronic Theft act?

The Copyright Act provides for both civil and criminal liability for acts of copyright infringement. Infringement is a crime only where it is done "willfully and for purposes of commercial advantage or private financial gain."

The penalties for criminal infringement, set forth in Title 18 of the U.S. Code, are determined by its extent: if the infringer has made, in any 180-day period, ten or more copies of one or more copyrighted works with a total retail value of $2,500, the crime is a felony entailing up to five years imprisonment and/or a fine of up to $250,000 for individuals and $500,000 for organizations.

For cases not meeting this threshold, the crime is a misdemeanor, with the maximum penalty of imprisonment for up to one year and/or a fine of up to $25,000 for individuals and $100,000 for organizations. There is also an increased penalty for repeat offenders, authorizing a sentence of up to 10 years.

The damage from piracy has grown over the years as technology has developed, making it easier and easier to produce higher quality copies of copyrighted works in various formats. Copyright owners today lose substantial sums of money to piracy.

The United States No Electronic Theft Act (NET Act), a federal law passed in 1997, provides for criminal prosecution of individuals who engage in copyright infringement under certain circumstances, even when there is no monetary profit or commercial benefit from the infringement. Maximum penalties can be five years in prison and up to $250,000 in fines. The NET Act also raised statutory damages by 50%.

Prior to the enactment of the NET Act in 1997, criminal copyright infringement required that the infringement was for the purpose of "commercial advantage or private financial gain." Merely uploading and downloading files on the internet did not fulfill this requirement, meaning that even large-scale online infringement could not be prosecuted criminally.

The case of United States v. LaMacchia, 871 F. Supp. 535 (D. Mass. 1994), has drawn attention to current law's shortcomings. David LaMacchia, a student at the Massachusetts Institute of Technology described by the court as a "computer hacker," created and operated electronic bulletin boards on the Internet and encouraged users to upload and download copies of popular copyrighted commercial software. The illegal copying that took place on the bulletin boards resulted in alleged losses to the copyright owners of over one million dollars. Because LaMacchia lacked a commercial motive, however, the government charged him with wire fraud rather than criminal copyright infringement. The court dismissed the indictment, holding that copyright infringement can only be prosecuted under the Copyright Act. Id. at 545 (relying on Dowling v. United States, 473 U.S. 207 (1985))

This state of affairs was underscored by the unsuccessful 1994 prosecution of David LaMacchia, then a student at theMassachusetts Institute of Technology, for allegedly facilitating massive copyright infringement as a hobby, without any commercial motive. The court's dismissal of United States v. LaMacchia suggested that then-existing criminal law simply did not apply to non-commercial infringements (a state of affairs which became known as the "LaMacchia Loophole"). The court suggested that Congress could act to make some non-commercial infringements a crime, and Congress acted on that suggestion in the NET Act.

The NET Act amended the definition of "commercial advantage or private financial gain" to include the "receipt, or expectation of receipt, of anything of value, including the receipt of other copyrighted works" and specifies penalties of up to five years in prison and up to $250,000 in fines. In addition, it added a threshold for criminal liability where the infringer neither obtained nor expected to obtain anything of value for the infringement - "by the reproduction or distribution, including by electronic means, during any 180-day period, of 1 or more copies or phonorecords of 1 or more copyrighted works, which have a total retail value of more than $ 1,000".

Is there a schematic drawing for a full adder?

Wikipedia has one under "Adder". I apologize, it is not easy to draw such things here.

What does the store Advance Electronics in Winnipeg sell?

The store Advanced Electronics in Winnipeg sells several electronics including iPods, TV's, cell phones, cameras, audio, and home theater systems. They also offer installation on several of their products.

How did my phone restart without me restarting it?

As with most phones (however this case usually is more in line with the Android platform) is if a application (system or otherwise) causes a system-wide crash which forces a reboot. Another possibility is that your phone has recently received a OTA update from your carrier (also known as "system update").

What type of current is used in batteries and which is used in household outlets?

In batteries Direct current is used (DC). This is because Batteries do not last very long and therefore are made to have certain voltage that can be used in most electronics. Batteries can be very hazardous if there is a short circuit that occurs.

In households the outlets are a form of Alternating current (AC). This is because AC is easier to use and has no big hazards (unless you stick a fork in the socket). If some of the outlets give out (die or burn out) the rest of the remaining sockets in that same area will still work.

What is the stuff that leaks out of capacitors?

It is called SMOKE, because when they blow up, you let the smoke out!

Construction and working of electronic eye as a alarm?

THEORY AND CIRCUIT DIAGRAM

Circuit Diagram of Electronic Eye

Electronic eye has much use in this electronic age. Also Known as magic eye. It can be used as an automatic guest indicator at the door, If fitted on the bottom of the door entrance. Once it is installed at the door there is no need to install a call bell. It can also be used at homes or in banks as a burglar alarm.
Fix the LDR to the wooden door or a locker to be protected in such a manner that when anybody tries to open it, a shadow falls on the LDR and the circuit gets activated and produce a pleasant sound through the buzzer.
This electronic eye circuit uses NOT gate from CMOS I.C

CD 4049. CD 4049 contains 6 independent NOT gate in one package; we have used here (a) one only. NOT gate output goes high(1) when the input pin 3 is at lower then 1/3rd level of the supply voltage. Conversely the output goes low (0) when it is above 1/3rd level. So small change in the voltage of pin-2 is enough to change the level of output (pin-3) from 1 to 0 and 0 to 1. The output has only two states high and low and can not remain in any intermediate stage. It is powered by a 9V battery for portable use. The circuit is economic in power consumption. Pin 1 is connected to the positive supply and pin 8 is grounded.
To detect the present of an object we have used LDR and a source of light. LDR is a special type of resistance whose value depends on the brightness of the light which is falling on it. It has resistance of about 1 mega ohm when in total darkness, but a resistance of only about 5k ohms when brightness illuminated. It responds to a large part of light spectrum.
We have made a potential divider circuit with LDR and 220 KΩ resistance connected in series. We know that voltage is directly proportional to conductance so more voltage we will get from this divider when LDR is getting light and low voltage in darkness. This divided voltage is given to input of NOT gate.
As soon as LDR gets dark the voltage of input not gate drops 1/3rd of the supply voltage and pin 2 gets high and LED or buzzer which is connected to the output gets activated.
Advantage of using Logic gate is that data can be easily send to other digital interface device.

one can easily fed data to computer using parallel port or for further processing .