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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
What are some of the important elements of an electronic circuit?
there is mainly zarton and eracitiom in electronics because they are the elements that give an object its natural glow
Why electronic key wont turn on 2001 E430 Mercedes?
my 96 Mercedes c220 sometimes does that when it thinks it's being stolen. something trips the builti -in alarm and it acts like it's broken. I have to leave it alone for 10 min and try again and then it works...
How many volts does an LED need to light?
That depends on the current. The formula P=IV (where P is power in watts, I is current in amps and V is voltage in volts) is how you calculate the power. So if the current is 2 and the voltage is 3 then P=2x3=6Watts. Use an ammeter to determine the current.
Keeping the fluid topped up with distilled water (acid must cover top of plates to a depth of 5mm or between Max/Min on marks if you have then,DO NOT FILL TO MAX OR OVERFILL,
long runs to ensure battery gets fully charged,if not in use remove battery and fully charge,test each cell with a hydrometer to check when all cells are fully charged,don't rely on a volt metre,if you get one cell that shows low charge or dead after 12 hours charge cell is dead,bin battery!
don't expose battery to extreme heat or cold for prolonged periods.When you buy a new battery FULLY charge it before use.
Dont use your car for short runs too often,that kills batteries.
Make sure your charging system is working well,check fan belt tension and condition regulary and check operation of charging sytem with a volt metre.
At rest should be about 13v-13.8v when running under full load (Wipers on,heater on,lights on,heated screens on etc) the battery voltage with engine running should not drop below 12v at 1500rpm off load with motor running @ 1500 rpm should be 13.8-14.4v any higher and the charging sytem is faulty and will boil battery dry,if too low,below 12.5V under charging test chargeing system and find fault.
These are rough figures and your checking to make sure it doesnt dive to 9v for example when loaded with the engine running,if so battery or alternator are not working propperly and are probably worn out.
The regulator on alternators only last about 10 years before they start to die,they can be replaced and come together with a brush set attached to them,so you shouldn't need to buy a new alternator unless the bearings are gone or a winding has failed.
That should just about cover how to keep your battery tip top,oh also keep the exterior clean and make sure terminals are always tight/clean (NOT TOO TIGHT),when done up coat terminals with either petroleum jelly (Vaseline) or copper grease (Copper ease) to protect them from corrosion/water.Make sure connections to battery are clean and undamaged,replace any that are corroded/damaged etc.
Doing these things will ensure you get the longest life possible from your battery 10-15 years.Best thing in the first place is to avoid buying the cheapest battery possible,spend that bit more for a quality named brand battery with a good warrany,i.e BIG,VARTA,DELTA,BOSCH etc
Where can a person purchase a Rolodex electronic organizer?
Rolodex electronic organizers are purchased from online stores and locally from retails stores who happen to carry that product. Rolodex are great tools for anyone who need help managing their day.
Types of electronic payment system?
Many types of electronic payment systems exist, but the average number is about seven, including Debit cards, Credit Cards, Electronic Fund Transfers, Direct Cards, Direct Debits, Internet banking, and e-commerce payment systems.
Do cell phones create radiation?
To a human being cell phone radiation is harmless. use of a cell phone is equivalent to a nominal amount of time in the sun. A live radio tower however could be extremely dangerous, do not climb over the safety fences or on the tower itself.
Follow these instructions at your own risk. If you do not feel comfortable performing a check or lack the knowledge to take necessary precautions please have repair performed by a professional. I am not sure what you mean by "still have power steering", if you have power steering I would think the engine is running. I will go on the assumption that the engine is not running. There are basically three parts involved to create the spark - the module, the pickup, and the coil. Since you have already changed the most failure prone part, let me give you some quick checks. 1. Remove the distributor cap and have someone crank the engine while watching to see if the rotor/shaft of the distributor is turning. If it is not turning the rollpin which holds the drive gear to the shaft may have broken, timing chain snapped, or a broken camshaft. If it is not turning, it is a small job to lift the driver's valve cover so you can see if the valve train is moving when the engine is cranked. 2. If the distributor is turning, using a testlight between ground and the negative side of the coil crank the engine while observing the testlight. Blinking light indicates the electronics are pulsing the primary side of the coil and if there is no spark it is likely the coil. You can force the coil to spark by grounding the negative side for a brief second while the key is on. The negative side is typically the one that only has one wire on the terminal. Each time you ground the coil it should spark. Only ground the coil for a second!! 3. If the testlight stays lit (it will dim slightly when cranking), the pickup is lilkely at fault. The pickup is difficult to test so it is best to eliminate the other components first. 4. Additional information can be found at http://www.therangerstation.com/tech_library/TFI_Diagnostic.html
What is a good electronics camera brand?
Some good web camera brands are: Logitech, Creative and Microsoft.
There are other good web brands about, depending on where you live, find a novatech, theese computer boffins, find anything you need for your electrical camerie stuff.
Where can one find electronic health records software?
An Electronic Document Management Software, a tool that increases efficiency in entry, storage and management of data especially in a business can be purchased at 'Ariba' and 'Capterra'. These are sites that also offer more information and details regarding the software while selling it.
Pros and Cons of Electronic Devices for Kids?
Children today are both blessed and cursed to have access to a world of infinite information. This world, known as the Internet, can be used for anything imaginable, from teaching children the sounds letters make, to learning all about dinosaurs or rocket ships. This all comes with a price however, and many parents are left wondering if allowing their children to constantly play with electronic devices is the best thing for them.
On the one hand, electronic devices are great for several reasons. For example, a parent may not be able to take their child to the library as often as they'd like, but with the Internet, there are dozens of websites that can read a wide range of books to your child. Some sites, such as YouTube, even illustrate the pictures, allowing the book to literally come alive.
Children also tend to change their mind about what they love and hate. One day your daughter may love dinosaurs, but the next day she's only interested in princesses. With the Internet, it doesn't matter what her obsession of the day is, you can use these electronic devices to keep her entertained. In a few clicks of a mouse, you can print out a new princess coloring book for her to color, or even stream the latest fairy tale movie.
On the other hand, electronic devices are fragile, especially for young children. Humans today live in a world of iPads, iPhones, laptops and netbooks, and these devices are only getting smaller. All it takes is one drop or one spilled drink and these devices are destroyed forever. With children, these accidents are bound to happen at least sometimes.
Electronic devices can also be addictive, and not everyone who uses them is nice. For these reasons, it's highly recommended that parents limit 'screen time' to only an hour or two a day, depending on the age of the child. Children should also be taught Internet safety from a young age. This includes never telling anyone their real name, where they live, and absolutely no meeting up with strangers, no matter how well you think you know them. If a child is too young to understand these rules, parental control programs can be installed on the electronic devices to insure maximum protection.
What are the Elements of optical fiber communication link?
If light meets the inner surface of the cladding (the core - cladding interface) at greater than or equal to Qc then TIR occurs. So all the energy in the ray of light is reflected back into the core and none escapes into the cladding. The ray then crosses to the other side of the core and, because the fiber is more or less straight , the ray will meet the cladding on the other side at an angle which again causes TIR. The ray is then reflected back across the core again and the same thing happens. In this way the light zig zags its way along the fiber. This means that the light will be transmitted to the end of the fiber.
In reality the light which enters the fiber is a focused beam, consisting of many millions of "rays" behaving in a similar way. They all zig zag along the core of the fiber, crossing over each other, and filling up the core with light. A pulse of light traveling along the core of the fiber is really a bundle of these rays.
What if spy net watch says its charged and you unplug it it turn off?
There's answers for every other spywatch problem but this. It charges and the computer sees it. I have adobe air and i downloaded the spynet app but mine shows disconnected also at the spynet hq app. How the hell do you fix this? And don't tell me to get a new one because that has already been attempted.
Early development of an electronic data processing?
EDP is an infrequently used term for what is today usually called "IS" (information services or systems) or "MIS" (management information services or systems), is the processing of data by a computer and its programs in an environment involving electronic communication. Specifically talking about the healthcare industry, physicians are going paperless with similar technologies known as EMR.
What are some different brands of electronic medical record?
75Health EMR system is a Cloud based EMR platform for all kind of specialists,doctors and small medical practitioners. simple and smart way of document your medical records electronically with advanced featured EMR with billing software. https://www.75health.com/
What inventions were invented in 1937?
Spam, the modern day shopping cart, the first ever walkie-talkie, Turboprop engine, Jet engine, O-ring.
What is the full form of cern?
CERN stands for Conseil Européen pour la Recherche Nucléaire, which is French for "European Organization for Nuclear Research".
Since the foundation of CERN the official name was changed into "Organisation Européenne pour la Recherche Nucléaire"
What is a fully automated home called?
A "smart home" refers to a residence that is equipped with devices and systems that can be remotely controlled and automated. These devices are connected to a central hub or network, allowing homeowners to manage and control various aspects of their home through a smartphone, tablet, or voice commands.
A smart home typically includes a variety of features and functionalities that enhance convenience, comfort, security, and energy efficiency. Some common components of a smart home include:
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Smart Security: Smart security systems provide enhanced surveillance and protection. These may include smart door locks, security cameras, motion sensors, and alarm systems that can be controlled and monitored remotely.
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Ambience Control: Smart homes often include technology that allows homeowners to control lighting, temperature, and other environmental factors. This can be done through smart bulbs, smart thermostats, and smart switches, allowing for personalized settings and energy savings.
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Scene Control: With scene control, homeowners can create pre-set scenes or scenarios that automate various aspects of their home. For example, a "movie night" scene could dim the lights, lower the blinds, and turn on the TV and audio system with a single command or button press.
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Curtain Control: Smart curtain systems enable automated control of curtains or blinds, allowing homeowners to adjust privacy, sunlight, and temperature with ease.
Before the advent of modern smart home technology, there were examples of homes that incorporated some elements of automation and remote control. However, these early systems were limited in scope and functionality compared to today's smart homes.
One notable example is the "X10" technology, introduced in the 1970s. X10 used electrical wiring to transmit signals and control devices like lights and appliances. Although it had limitations and reliability issues, it laid the foundation for future advancements in home automation.
Another example is the "Clapper," a sound-activated device introduced in the 1980s that allowed users to control lights and appliances by clapping their hands. While simplistic in comparison to modern smart home systems, it showcased the concept of remote control and automation.
Overall, while elements of automation and remote control existed before the technology behind smart homes was fully developed, the scope and capabilities of these early systems were far more limited compared to the sophisticated, interconnected, and feature-rich smart homes we have today.
How does e-waste affect the atmosphere?
e waste affects the atmosphere because it cause polution into the air and kills animals people and the environment
Who is the father of electronics communication?
For wireless communication, undoubtedly Guglielmo Marconi, who invented the spark gap transmitter. Then for telegraphy, it has to be Samuel Morse. The telephone was invented by Alexander Graham Bell.
Why resistor is an electronic device?
electronic circuits are those which deals with flow of electrons. in general electronic devices are categorized based on the flow of e as conductor, insulator and semiconductor. since resistor resists the flow of electrons (it deals or works with electrons), it is consider as an electronic device.
Can you use a12vdc 2000ma power supply to power a 12vdc 1000ma device safely?
Depending on what type of power supply it is there are a few options.
If the 2000mA rating means it'll supply up to 2000mA, you're already okay, although you should put a resistor in parallel with the device to safely dissipate extra power. You wouldn't want to exactly split the supply in case the device has current demand variations. It would probably be best to siphon off say, 750mA. Since it's 12 volts, from ohm's law: V = IR you'd want 12 = 750mA*R, or a 16 Ohm resistor. It would also have to handle the power output, where P = IV, so P = 12v*750mA = 9 W. This is a lot of power, but you could probably find such a resistor somewhere. (Try looking at sandstone power resistors)
However, if the supply is powering a sealed device (eg something you wouldn't open up and tamper with), I think you'd be better off just finding the appropriate power supply.
- bipolar devices use both majority and minority current carriers
- unipolar devices use only majority current carriers
What are the differences between electronics and photonics?
I think you mean proton and electron...The main difference is charge. Protons are positive and electrons are negative. The mass of both protons and electrons are almost exactly the same. The size of electrons are slightly smaller than that of protons.
