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Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Mar26-08 12:32 PM
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I came across another good search engine today looking for a datasheet, so I thought I'd try starting this thread for...
Dec3-13 12:53 AM
27 47,127
I've occasionally been asked by some of the students I've mentored or TA'd over the years, "What's in your toolbox? ...
Feb4-14 04:57 PM
62 59,526
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...
Apr10-14 04:04 AM
189 60,889
Hello, I haven't learned anything about micro controllers yet but I wanted to get a head start since I hear that...
Apr19-14 03:36 PM
19 322
What type of circuit can convert single phase electric power into three phase electric power? Can the circuit diagram...
Apr15-12 09:26 AM
35 10,129
I'm currently using Nilsson/Riedel's book for my circuit analysis class: ...
Apr15-12 10:38 AM
0 1,559
I am confused by the design of this AM receiver/tuner circuit. I don't understand how the...
Apr15-12 05:21 PM
2 1,707
frequency counters has got an influence upon me i would like to know how it works and if possible how to make one
Apr15-12 06:17 PM
1 2,005
Hello, I'm building a DC generator for fun (of the cardboard and lego variety). It is based on this model: ...
Apr15-12 07:33 PM
9 15,298
Hi, here are a few newb questions about error sensing - I have a Kepco BOP 20-10M that I have connected to a solar...
Apr15-12 11:56 PM
Aaron William
0 636
Hello, this is my first post. I googled it, and searched the forums, but no luck. I want to know what I need to...
Apr15-12 11:59 PM
5 1,014
Hello, I am an Electrical Engineering Technologist student and we have a design project that i am trying to...
Apr16-12 01:49 AM
jim hardy
1 869
Hi I have taken a very rudimentary course on antenna theory, now i am interested in further deepening my knowledge....
Apr16-12 01:53 AM
3 956
Please explain me the working of TRAPATT diodes . I am not getting it from the textbook especially the transit time...
Apr16-12 02:49 AM
0 1,491
iam going to work on real time image detection and recognition can anyone recommend me a good book iam totally new to...
Apr16-12 04:25 AM
0 623
If I was to make a modification to an 8 bit full adder to make it a an eight bit full subtractor would I put an...
Apr16-12 09:45 AM
2 10,982
I know that an AM Amplitude vs. Frequency Spectrum has a central frequency = carrier frequency and two side bands of...
Apr16-12 01:48 PM
4 1,359
Hi, Something is puzzling me with the HVDC work I'm currently working with. I'm working for contracting company...
Apr16-12 02:54 PM
3 1,118
Hi, I see that Boltzmann constant comes in different forms like: k=8.62*10-5 eV/K and also k=1.38*10-23J/K. Which...
Apr16-12 04:16 PM
7 2,458
I am looking at a building with a car park in Sydney. Electrical circuits are run on perforated cable trays at high...
Apr16-12 04:47 PM
0 387
two very large solenoids (tons maybe ) Stacked vertically, very large capacity wire coil w/ iron core. upper solenoid...
Apr17-12 01:40 AM
55 25,919
hi all, i wanna know that how can i determine the size generator fuel storage tank. let suppose i have 3 generator...
Apr17-12 06:14 AM
6 1,698
Ok; so basically, I am creating the game of Nim through gate chips (AND/OR/NOT), switches, and yea all the basics. ...
Apr17-12 10:14 AM
5 1,067
I am trying to build a function generator and I am unsure of how to build a circuit to vary frequency. Would I use a...
Apr17-12 02:01 PM
4 2,140
Let's say we have 2 different conductors - one a round wire, another a round wire but with hollow core. The wire...
Apr17-12 02:56 PM
23 3,312
I have some recessed can lighting fixtures in a commercial application that was using compact 277v fluorescent bulbs...
Apr17-12 05:43 PM
9 1,709
"an electric field is the region of space surrounding electrically charged particles and time-varying magnetic fields"...
Apr17-12 05:44 PM
1 1,015
What would happen if an uplink and downlink had equal frequency. I know 'swamping' would occur, but what IS swamping ?...
Apr17-12 08:14 PM
8 1,593
i have a wien bridge oscillator by using 15V power supply. its output is sine wave. but i have a question. is the...
Apr17-12 08:20 PM
2 762
Can you explain to me how I find the initial magnitude in dB in example 5? I'm used to using the equation 20log(break...
Apr18-12 06:54 AM
0 634
I am having trouble coming up with the equation given to me from ...
Apr18-12 09:41 AM
0 1,578
I'm just curious.. the widely used DCF.. what are they made of? Are they just normal fiber with some physics trickor...
Apr18-12 10:25 AM
0 507
Hello. Here joined is the schematic of a small deflection amplifier. Outputs H0 & H1 are connected to electrodes...
Apr18-12 11:24 AM
6 1,285
I'm studying for an exam and i'm struggling to understand op amps, here's my problem: I understand that for an op amp...
Apr18-12 11:47 AM
6 3,087
Hi, y'all; This will likely be a simply question for most of you, but I am still something of a neophyte (yes, yes,...
Apr18-12 04:54 PM
1 639
Hi im making a project in my spare time and i am getting quite confused with the whole situation. I have 100 LED's...
Apr18-12 07:09 PM
19 1,822
Dear All, When I have a equation 1/sT its an integrator with time constant i.e Assuming a T of 5s, if I input a...
Apr19-12 12:04 AM
1 849
I am working with a kit circuit that I ordered online. The circuit triggers a relay when it "hears" a loud noise. I...
Apr19-12 01:33 AM
1 1,047
We know charge is accumulated on the conductor plates of capacitor. Here is a circuit (image) with voltage source,...
Apr19-12 05:33 AM
48 8,716
I found this problem during simulating my SIMULINK block diagram. how can i solve this? thanks. it is emergency. this...
Apr19-12 10:45 AM
0 1,736
hello, pozdrav my question is about Valve Regulated Lead Acid battery. may i charge it only with "float" voltage...
Apr19-12 11:32 AM
2 1,126
Is the output from a transistor sensor circuit analogue or digital? I know that you sometimes need a pull up or down...
Apr19-12 04:28 PM
9 1,541
if electricity is flow of electrons and also positive and negative charges attract then why electricity needs a...
Apr19-12 06:41 PM
jim hardy
3 846
Isn't the case that when the lamp filament melts the resistance of that part of the circuit goes to infinite? So why...
Apr19-12 07:02 PM
jim hardy
4 1,320

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