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Jan16-12 Greg Bernhardt
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Mar26-08 12:32 PM
berkeman
0 31,250
I've occasionally been asked by some of the students I've mentored or TA'd over the years, "What's in your toolbox? ...
Jul13-14 10:34 PM
NATURE.M
63 83,078
I came across another good search engine today looking for a datasheet, so I thought I'd try starting this thread for...
Aug22-14 02:05 PM
Jamesangelo
28 58,588
ansoft, maxwell Sticky Thread Pinned: Maxwell 3D (ANSOFT) ( 1 2 3 ... Last)
Dear all, I'm a new user and I like to exchange information about the use of this tool. From my point of view tool...
Aug25-14 03:20 PM
Fuxue Jin
196 95,244
I have a signal and it oscillate bewteen 0 and 10V for 400ms when triggered. What is the easiest way to design a...
Apr10-07 06:54 PM
david90
2 1,116
I had electronics last semester, and we went over some digital briefly at the end. I think we learned a bit about...
Apr10-07 07:45 PM
PhilosophyofPhysics
4 1,230
hi...i don't know if like this topic exists here ...but i noticed that it is good to make a topic about websites about...
Apr11-07 01:20 AM
moe_3_moe
2 1,465
Greetings All, I'm restarting a personal project (after having to put it on hold) involving magnetically induced...
Apr11-07 12:48 PM
GarageTinker
18 9,762
Hello All, I was wondering if anyone could help me determine roughly what size wire is used in the coil of a...
Apr11-07 12:48 PM
Jdo300
0 2,580
hey, could anyone advise me on how to set up a solenoid to pull a small bar or stop into the path of the coin for...
Apr12-07 04:01 PM
propergomper
0 1,503
Dear all, I know that I can create a uniform field using the design of a Helmholtz coil with an air-core. ...
Apr12-07 07:11 PM
marcusl
3 4,037
I am obtaining data with a sample rate of 6250 samples/second on a digital oscilloscope. Ideally, I am obtaining a...
Apr12-07 10:30 PM
vsage
2 2,299
Here is a great online tool to do bitwise operation. This is a great tool for those who learning bitwise operation in...
Apr13-07 01:13 PM
LPHY
0 3,267
Hi, I have a simple circuit question. I was just wondering why I(o3) = 0? (see link) - Is it because current...
Apr14-07 02:41 AM
Corneo
1 1,186
Hi, I'm just getting properly into electronics. I'm curious as to how fast an analogue circuit can operate. I'm...
Apr14-07 05:04 AM
antoker
6 1,267
Hi, What is the rule of thumb for choosing the voltage rating of a capacitor? Should it be twice the operating...
Apr14-07 09:46 PM
es1
4 44,063
Hello All, This is an edited re-posting. I am looking for verification on a formula. As part of a personal design...
Apr15-07 02:36 PM
GarageTinker
4 23,947
Hi All, The question I ask is pretty elementary.Come to think of it, i am not even an academic and the industry I work...
Apr16-07 04:11 AM
smolkswagon
0 1,046
Hello All, I was wondering if someone could help me figure out how to calculate the induced voltage across each of...
Apr16-07 11:13 AM
berkeman
3 2,753
hi i was wondering if anyone could tell me about a sigma-delta convertor what its general functions and the...
Apr16-07 11:31 AM
berkeman
1 1,790
What instrument would I need to get a hysteresis loop (Flux Density vs Magnetizing Force) for an inductor? Is it...
Apr16-07 11:34 AM
berkeman
1 2,013
Hello All, I've been working on making a special three-channel pulse circuit that has three harmonic outputs using...
Apr16-07 11:44 AM
berkeman
4 6,595
A while back, I purchased a 38W peltier cell on ebay. It wasn't powerful enough, so I'm looking at something along the...
Apr16-07 01:31 PM
vadslram
1 4,871
Hi all, Can anyone please give me an example of a nonlinear differential equation used to model a certain type of...
Apr16-07 02:08 PM
waht
3 2,347
hey can i talk with any ee student of university of michigan...:rolleyes:
Apr16-07 04:44 PM
berkeman
4 1,634
I am trying to control a bunch of LEDs to respond to different audio frequencies. I have a microprocessor with A/D...
Apr16-07 06:24 PM
sas3
6 1,882
So I will start off saying that I am not a genius when it comes to this stuff quite yet, but i have done several EE...
Apr17-07 12:30 AM
Arsenic0
0 4,712
I'm very interested in Experiment with high voltage that can show arcs. I also like to modify my swatter ( electric...
Apr17-07 12:19 PM
berkeman
3 2,927
hi all. hope everything is well. Just some advice please: want to measure the displacement of a car's shock...
Apr17-07 01:31 PM
LM741
11 2,432
Dear All ; what is the inverse fourier transform for f(w)=|w| and how can do it in steps?? thank you ahmad
Apr17-07 03:25 PM
ahmad-al3omar
0 2,327
So here is the deal: I am driving a polarization rotator to attenuate light. The polarization rotator takes a 3-5kHz...
Apr17-07 07:01 PM
Mindscrape
2 2,273
Was hoping someone could sum up what parasitic oscillations are (perhaps in terms of some simple circuit...
Apr17-07 11:22 PM
apra143
2 3,765
I have a problem where I have digital information on my computer and want to send it to thousands of receivers across...
Apr18-07 11:41 AM
berkeman
2 1,727
Does anyone know where to find a solutions manual to "Field and Wave Electromagnetics" written by David K. Cheng? If...
Apr18-07 01:35 PM
berkeman
3 6,623
I found a schematic from the internet that was claimed to generate a square waveform at a decent frequency. I built...
Apr18-07 02:43 PM
antoker
3 2,385
I play around with HO slot cars and would like to wind my own "hot" armatures but I can't find any sources of...
Apr19-07 06:17 AM
vadslram
2 22,093
Hi i am stuck with something really simple :( I know that we can express a signal with the even and odd signal...
Apr19-07 10:20 AM
vsage
5 10,107
I need help plotting the VTC of a given circuit. I tried dividing the output signal by the input signal put that does...
Apr20-07 09:31 AM
sunday
15 3,076
What is "rated load" and what is its relationship to rated voltage and current? Part of the question: "Assume the...
Apr20-07 10:48 PM
WFO
2 13,384
Hello i need some help with a postgradyuate lesson we have. It is called signal and systems and basically starts with...
Apr21-07 09:49 AM
trickae
4 14,168
hi, I am having trouble figuring this out mathematically... I have no idea why but I can't figure it out using...
Apr21-07 11:12 PM
shibme
8 1,437
Hello All, I hope everyone has had a good weekend. I've put together an Excel sheet (168 Kb) into which I've...
Apr22-07 06:22 PM
GarageTinker
0 1,468
Does anyone know where I can get a copy of pspice? I just want to try out the examples in the Sedra and Smith's...
Apr23-07 03:33 AM
ossamaussama
2 2,678
I have a Philips 1000/J/2000 357 Rp 16Khz Capacitor, can anyone tell me what the capacitance value is? i believe its a...
Apr23-07 03:37 AM
ossamaussama
3 1,316

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