| Subject | Date Asked | Expert |
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| DC generator | 7/8/2005 | cleggsan |
Q: I have a question about dc generators. On a dc generator, this one in particular is on a engine for ...
A: SSG Deer, You are right on both accounts! Because it depends on how the generator is wired by the ...
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| DC Generator excitation | 7/8/2005 | Dave Nyce |
Q: I have a question about dc generators. On a dc generator, this one in particular is on a engine for ...
A: If a generator is the type that does not use permanent magnets, then it has a field winding to ...
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| electrical engineering | 7/5/2005 | John F. Iannuzzi |
Q: please can you explain to me what you meant by the word "use the math" or rather what math are you ...
A: For some reason, math and theoretical circuit modeling falls through the cracks for many EEs after ...
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| generating light | 7/4/2005 | cleggsan |
Q: In an incandescent lamp electrons are stepped up to a higher orbital then as they fall down, photons ...
A: I think you have over complicated the heat light. It is simple a resistor that heats up with ...
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| electrical engineering | 7/1/2005 | John F. Iannuzzi |
Q: i am an electrical engineering student with an option in electronics and telecommunication ...
A: Femi, As you know, there are a lot of specalty feilds in EE. It's great if you know exactly what ...
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| Relays | 6/30/2005 | John F. Iannuzzi |
Q: I am trying to get a bank of LED's to switch on when a 4.0v, 3mA signal is present. The LED's would ...
A: Dain, First make sure that the LEDs in the switching circuit are connected with the right polarity. ...
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| Transformers | 6/26/2005 | Dave Nyce |
Q: Is a transformer's current rating the amount of current the transformer can deliver SAFELY? I would ...
A: Transformers are rated in various ways. To understand the capability of your particular ...
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| electronics and instrumentation or electronics and communication | 6/24/2005 | cleggsan |
Q: i have currently passed and am pondering over which is a better field among e&i and ece.please give ...
A: This will come from you personal interests. Where do you want to live? Do you want a big city or a ...
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| Voltage Divider/Transformer rating | 6/23/2005 | John F. Iannuzzi |
Q: Is a transformer's current rating the amount of current the transformer can deliver SAFELY? I would ...
A: General application AC transformers are usually rated using volt-amperes. This is a measure of ...
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| electronics and instrumentation or electronics and communication | 6/23/2005 | cleggsan |
Q: i have currently passed and am pondering over which is a better field among e&i and ece.please give ...
A: ECE is the more growth oriented career now days. But, you should make your decision on which is ...
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| Programmable logic controllers | 6/22/2005 | Russ Kinner |
Q: 1) When forcing is used on a programmable controller, a warning message appears, what is the need ...
A: 1. Depending on the model of PLC, the status of the forcing may be displayed next to any use of the ...
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| Career: electronics/electrical engineering | 6/19/2005 | cleggsan |
Q: Generally, what is the difference between studying electronics and electrical engineering at ...
A: Q: Generally, what is the difference between studying electronics and electrical engineering at ...
|
| tv | 6/16/2005 | Russ Kinner |
Q: I was just sitting watching TV and had the thought of a video recording is all stored electronicly ...
A: The unit that was used to transfer film to camera was a telecini. The unit was composed of ...
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| ELD +TV color | 6/13/2005 | cleggsan |
Q: The transformer is called a 1:100 transformer, but does this mean it actually has 1 primary turn to ...
A: 1:100 is the ratio; there may be 10 primary and 1,000 secondary; depends on the necessary electrical ...
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| weed whacker motor | 6/8/2005 | John F. Iannuzzi |
Q: I realize you are way overqualified for my question, but desparation prompts me to ask anyway. My ...
A: Bruce, I have seen sparks from brushed motors solely by the contacts being dirty. Check that... you ...
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| ELD | 6/8/2005 | cleggsan |
Q: An Electroluminescent Display need a high AC voltage to operate. A EL backlit watch only has a 3V ...
A: http://science.howstuffworks.com/question296.htm Will explain much. Yes, a small transformer is ...
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| HMI Software Best | 6/6/2005 | Russ Kinner |
Q: Russ, I have a automation integrator/contractor that I work with who claims that ABB's HMI ...
A: I'm obviously biased in any view about my business. With that in mind, we have a project in house ...
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| static electricity | 6/3/2005 | Dave Nyce |
Q: Is there an electronic device or ciruitry which will produce a "static-electric" charge? (Not a ...
A: Yes. A negative ion generator can be a static electricity generator if you provide a capacitor for ...
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| Equalizers and pickups and volume control | 5/31/2005 | cleggsan |
Q: I know that if you use a magnetic reader/pickup (in a tape deck or a turntable) the pickup will ...
A: Simon, Actually, the piezo pickup is a constant velocity device which will give an output that is ...
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| Diode | 5/31/2005 | John F. Iannuzzi |
Q: Is diode a passive or active device?
A: Generally, resistors, capacitors, inductors, transformers and such are classified as passive ...
|
| I WAS WONDERING HOW MANY DEGREES... | 5/29/2005 | cleggsan |
Q: I WAS WONDERING HOW MANY DEGREES A PHASOR ROTATES WHEN MULTIPLIED BY j AND WOULD IT BE EXPRESSED IN ...
A: Claudia, j is a math operator. In electrical circuits it is 90 degrees. Impedance, for example is ...
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| fringe howl | 5/25/2005 | cleggsan |
Q: ITS ME AGAIN SO IF YOU CUT OFF FEEDBACK BY TUNING OFF FREQUENCY WOULD THAT CAUSE IT TO GO OFF ...
A: No, usually the going off tune is done manually by the operator; in other words it is caused by not ...
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| fringe howl | 5/25/2005 | cleggsan |
Q: IS THE STARTING AND STOPPING, AT AN AUDIO RATE OF SELF OSCILLATIONS CONTRIBUTE TO THE PRODUCTION OF ...
A: Claudia, Wow, there aren't very many people still alive that even know what fringe howl is! It is ...
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| Generator Torque | 5/18/2005 | Dave Nyce |
Q: If you have a 115V generator and connect a lamp to it you will get 115V across the lamp. If you ...
A: The generator provides electrical power to the load, as voltage times amperage. A motor provides ...
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| Solar panel charger | 5/17/2005 | Dave Nyce |
Q: How do I go about buying a solar panel that will charge a 6.5 AH, 24v NiMH battery pack? What do I ...
A: A NiMH battery requires a specific charging method, or it can catch fire. I searched on the web ...
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| Generator Torque | 5/17/2005 | cleggsan |
Q: ! Ok.. is this right?: If you have a 115V generator and connect a lamp to it you will get 115V ...
A: My reply in CAPS TO YOUR QUESTIONS. If you have a 115V generator and connect a lamp to it you will ...
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| Generator Torque | 5/16/2005 | cleggsan |
Q: A generator becomes harder to turn the "heavier" the load attached to it is (I suppose it would ...
A: Simon, Yes, you are correct; the generator is merely a converter. It converts mechanical energy ...
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| Wana know abt IP PHONES | 5/14/2005 | cleggsan |
Q: Helo sir How r u & i hope that u will be fine, Sir I wana to know abt the IP phones , their woking ...
A: Hafeez: Go to this web site: http://computer.howstuffworks.com/ip-telephony.htm You will find ...
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| Transformer & Turntable | 5/11/2005 | Dave Nyce |
Q: A transformer is a coil (or 2 coils) of wire round an iron core. Does a transformer have insulation ...
A: The wire for winding a transformer or a speaker coil is coated with a varnish for insulation. ...
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| Bias-Rg | 5/5/2005 | cleggsan |
Q: This webpage talks about cathode bias: http://www.tpub.com/content/neets/14178/css/14178_43.htm But ...
A: Simon, It is much less sinister. The purpose is to have a shunt path for electron build up on the ...
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| HT and Valve without bias... | 5/2/2005 | Dave Nyce |
Q: If a transformer is HT, it means it has a high internal resistance (many turns) and if you ...
A: Applications requiring high voltage normally don't require much current, so a relatively fine wire ...
|
| thevenin's theorem | 4/30/2005 | cleggsan |
Q: we have a circuit in which only a current dependent source is working.No other source is present in ...
A: Abid, In a Thevenins equivelant circuit, the source can be either a current generator or a voltage ...
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| Screened cable and bass response | 4/28/2005 | cleggsan |
Q: Can I just ask why the bass response DECREASES as the value of the coupling capacitor gets lower? I ...
A: No, the impedance of a capacitor is inversely proportional the to the frequency. The equation for ...
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| Circuit Question | 4/27/2005 | Dave Nyce |
Q: I was wondering if you had a circuit that would perform a task i have. I need a circuit that will ...
A: What you want is called a monostable multivibrator, or one-shot. You want one that is not ...
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| Screened cable and bass response | 4/27/2005 | cleggsan |
Q: On my valve turntable I changed the screened cable that connected the bass pot to the PCB for ...
A: Simon, I am having a difficult time following your description of the symptoms. So, let me ...
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| Audio | 4/26/2005 | John F. Iannuzzi |
Q: I have a CD player whose output is stereo AES/EBU. I want to convert it to analog sound suitable to ...
A: If the computer sound card has an AES/EBU input then there should be no problem. I don't know if ...
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| Screened cable | 4/25/2005 | Dave Nyce |
Q: Also, just to check, In the centre of the board there is a big metal can which contains 3 ...
A: The 8uF seems too big for a coupling capacitor, so it could be a power supply filter, as you ...
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| Hum | 4/24/2005 | cleggsan |
Q: -). The record player is working!!! The record player always had a background hum in it, it would ...
A: Simon, Hum, Hmmmmmmm. Well, hum is on thing and power supply hum is another. The big can is in ...
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| microprocessor | 4/23/2005 | Russ Kinner |
Q: 8088 microprocessor comes later than 8086 .why 8088 data bus is 8 bit and 8086 is 16 bit
A: Here are several links that describe the differences and why the 8088 was used in the original IBM ...
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| The steps to making light bulbs solar powered | 4/23/2005 | Russ Kinner |
Q: Hey!!!!! How do you make lights solarpowered?!?! I am in 5th grade and we need this for our science ...
A: What is needed are Photovoltaic cells which convert solar (or other light sources) into electrical ...
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