Electronics

300

Alessandro Volta

One look at electronic and electrical textbooks yields the answer. There are many different areas of electronics, involving needing mathematical knowledge about electricity/magnetism, power/heat dissipation, how circuit components behave, system response to excitation, and much more. I will provide at least one example link to give a flavor:

http://www.hobbyprojects.com/electronic_formula.html

http://www.allaboutcircuits.com/vol_5/index.html

1. To test the functionality of a piece of electronic equipment, calibration tests can be performed in various ways. For example in equipment with variable outputs that are not calibrated (some power supplies), a test using a multimeter or oscilloscope (obviously both being within calibration) can be performed to compare the output voltage to the measured voltage and thus adjust the variable outputs to the correct value required. For pieces of equipment that do require calibration; if the equipment comes out of calibration before the re-calibration date, calibration should be performed or organised before use.

If the resistance is 100 Ω and you use PT100, the temperature is O°C or 273.15K.

1. Call one of the people you want to three way call with. 2. While talking to that person, press talk (send, or green button) then dial the other person's number you want to three way call with then press talk again. This should work...

3 pin XLR's are mono. 5 pin XLR's are special connectors usually used in stereo microphones, but usually split on the other end to two mono XLR's.

Its function is to increase current. If this coil gets damaged then it has to be changed.

No, capacitor banks reduce harmonics. They act like a low pass filter. They also raise voltage by compensating for inductance and bringing the power factor back closer to 1.

Capacitor banks in the power system can cause transients when randomly closed - many utilities use zero voltage closing equipment, or inductors to counteract this short time harmonic problem.

if any operating system denied the access to any file it means that file is protected by any other person or may be system file which is very necessary for operation.

and also a matter can be that , a person locked that file with a computer program and that program will ask a password for opening.

1.25

What is the Relationship between resistance and inductance in a RL circuit?

There is no way to produce sound of this frequency that you will be able to hear. Human ears have a high frequency limit of approx. 20,000 Hz. This decreases with age to around 16,000 for many people. You propose to create a air pressure wave of 1,605,000 Hz. There is no earphone on earth capable of creating that pressure wave, nor any ear capable of listening to it. Ultrasonic frequencies in this range are used for medical diagnostics and industrial design and testing.

check out cheapphonecases.com

Electronics played an important role in WW2 and literally thousands of books and articles treat the subject in depth. Briefly stated although the first electronic computer was not made during WW2 it followed less than 16 months after VJ day and was a direct descendent of the hybrid electro-mechanical computers used for code breaking (ie The Bronze Goddess of the Ultra cryptographers) and ballistic work. Other notable feats of electronic wizardry include the Proximity Fuze (Johns Hopkins Applied Physics laboratory Silver Spring MD), Microwave megatron Radar (Britain and MIT) "Huff Duff" beam detection (Britain) Television aided bomb guidance (Germany) Electronic beam navigation and bombing sighting (Germany) radio telemetry guidance (Germany) ASDIC and SONAR (Britain) not to mention all the electronics involved in the Manhattan project (nuclear weapons). These are just a few of thousands of examples of electronics applications in the Second World War.

Chances are you did more than just "bump it". Newer HDD's are very good with dealing with Motion and are reactive.

That said, if you hear clicking or scratching, the hard disks are probably getting ruined and it would be very expensive to get information off of the disks. (Companies that do recovery, transfer the platters to another enclosure to extract data, which requires a clean-room environment) There are many places that do it, but it won't be cheap:

If you can solder, then soldering the wire back where it belongs is probably the best long term solution. If you don;t know how to solder or don't feel comfortable soldering the particular piece of equipment, a technique that i have used in the past is to place a small ammount of aluminum foil on the terminal you want the wire to attach to, and then fold the foil over the wire, and tape down the whole affair very well with electrical tape or duct tape. It is not a permanent solution, and you have to be extremely careful to only let the foil touch the wire and the terminal you want to connect together, other wise you could cause a short. If you are careful though, i have been able to make this setup work well enough to keep things running until you can fix the problem properly.

Hey,

I don't know if this is what you mean or not but, if you mean, 'what is the 'code' at the end of the files', then I think it is: .exl

Hope this helps JJ x

both S and R go high at the same time..this may lead to oscillation or an invalid set

This is dumb!

no

It stops all incoming calls from reaching you as long as the DND feature is activated. In case of Hosted PBX Systems the Do Not Disturb feature, blocks the calls from ringing your phone. All calls are directly sent to voicemail. The DND service if activated, will only work for your phone. The rest of the phones connected to the same line will remain unaffected.

If you want, you can let e few important callers to reach you even when DND has been activated. For this a special 4 digit pass code is provided.

See the related link for more information

sir,

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