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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 31,072
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
doubtbook
27 58,197
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...
Aug13-14 03:22 PM
Fuxue Jin
194 94,286
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 82,454
I am a Mechanical Engineer and have less idea on Generators. In wind turbines as the generators would be driven at...
Oct15-11 07:11 PM
cmb
8 1,623
My knowledge in electronics is limited. In general, the television remote use IR for sending signals. I would like to...
Feb17-12 04:00 PM
yungman
5 852
Recently, I have been coming across the news on BLE/ BT 4.0 on "Home Automation". However, I would like someone to...
Feb24-12 02:42 PM
bhaazee
0 2,101
I would like to know about selecting the proper lipo batteries. For example, for the following motor spec a suitable...
Mar8-12 10:51 PM
vk6kro
1 629
Why j.ds has ' closed integral ' on below equation
Dec14-13 09:55 AM
Shyan
2 426
What is phase shift of qpsk when symbol change occurs ? Can anybody explain please ?
Dec20-13 02:46 PM
sophiecentaur
2 553
What is thermal noise voltage of three resisors connected in series
Dec20-13 10:17 AM
berkeman
2 451
why in a transfer function it is written by considering the initial condition to zero.. because if we individual...
Sep19-10 12:38 AM
bharath423
5 1,476
Hi friends, here's my question. The two terminals of a PN junction are at different potentials so, if I connect a...
Sep17-11 09:26 AM
jim hardy
20 3,161
Hi all, I have recently come across term "phase wand between the magnetron and the accelerator, to provide reflected...
Dec11-13 07:00 PM
Baluncore
2 627
After conducting CV measurements on Thin Film semiconductor wafers, how do we determine the behavior of the wafer...
Mar23-09 12:09 PM
berkeman
1 999
Hi all, If a CV curve obtained for an n-type substrate thin film is approximately flat, i.e the capacitance value...
Apr17-09 12:40 AM
bhavi
0 904
Hello everyone, I would like to ask a little help from you guys. I am designing a Permanent Magnet Synchronous...
Aug23-10 12:39 AM
Carl Pugh
3 2,787
Hello Friends How to calculate the minimum GAP distance between two electrodes?
Dec23-13 06:01 PM
Simon Bridge
4 643
I'm curious the amount the voltage would drop across a resisitor. If you know the power going into the resistor and...
May23-13 06:24 PM
sophiecentaur
2 710
Hi friends, I was looking for signals which will have themselves as the Fourier transform. Few of them are given...
Nov27-09 07:14 PM
Redbelly98
3 1,010
I purchased two of these for 14$: http://i46.tinypic.com/2n6x4ox.jpg http://i46.tinypic.com/7lfd.jpg What can I...
Sep11-12 09:40 AM
jedishrfu
3 640
I was wondering if there was a simple program out there that would help me design and toubleshoot schematics I draw? ...
Oct8-12 01:08 PM
BhutJolokia
6 869
I am building one. Not for school but for personal reasons. Is anyone here familiar or has built one before? I have...
Oct12-12 04:25 PM
BhutJolokia
2 671
Hello, I would like to know if there is a part I can buy that will alternate my dc power circuit on/off at short...
Jun7-11 02:16 AM
Biasless
6 1,288
Please explain the below: Resistance@95 =R@35 x (1+α*(95x(I/Io)+20))/(1+75x α) at the actual current A (I Act).
Jul20-14 04:11 AM
bibincjoy
10 1,083
Hello Guys !! My question is : why in these photos the ohmmeter reads the total resistance ?? ...
Oct17-13 09:35 AM
sophiecentaur
3 458
hello guys ... i want to design this circuit on proteus and print it to put it on a board this is a regulated...
Nov27-13 07:04 PM
Baluncore
1 496
Hello guys !! :) i need your help in the integration which is used to calculate the total charge in the electric...
Mar22-14 04:23 PM
jim hardy
3 270
How can i test an ammeter with ratings 24V (dc) 100 A with any load? This is just to check whether the ammeter works...
Nov30-10 02:58 PM
waht
1 1,946
I need to know how can I increase the duty cycle of a pwm. Thank you very much :)
Apr28-09 03:00 AM
vk6kro
2 2,211
anyone point me in the right way to wire this variac up correctly....i'm wanting to control the speed of a fan running...
Mar18-11 10:57 PM
TurtleMeister
6 3,029
I always wanted to know how this worked? I know AMPs is how many Electrons move past one point in a SEC. I know...
Feb7-13 08:39 PM
benjaminbailes
13 1,520
I need some help understanding how a House Fan is wired to 2. Switches and 1. Switch can turn the fan on and off and...
Jul17-12 07:28 PM
biferi
16 2,021
I am trying to build a 3 phase sine wave 2.5-3 mhz power supply. To do that with electronic's is beyound me. I have a...
Jan30-07 01:20 AM
biff
12 3,000
Hello every one:smile: I would like some help regarding building a battery powered heater. Let me describe the...
Jan15-12 06:42 PM
dlgoff
12 3,615
This may be kind of odd, but this is my first post, so I'm kinda new at this. I need to calculate the output...
Nov7-06 03:51 PM
berkeman
6 10,302
Ok guys, I'm a ME in a bit of a bind. I need to find a crash course in monopole antenna design really quickly. Anyone...
Feb9-08 12:24 PM
bigaggie
0 2,506
I am a 2nd year student at an engineering school. I searched google and other sources to try to find anything and...
Aug6-11 04:40 AM
dpksign
7 40,713
I got a piece of machine imported from China and after inspecting the motor it was 50HZ after looking at the specs on...
Oct3-08 02:49 AM
Pumblechook
15 3,202
Is it possible to turn my 20 square foot welding table into an elctromagnet? I weld steel cut nails into artwork. The...
Jan24-11 05:00 PM
pantaz
7 2,162
We have had a catastrophic failure of an SF6 circuit breaker. This breaker was used as a synchronising breaker for a...
Dec16-09 07:37 PM
timmol
8 6,779
We operate a 3 phase, 11kV network with automatic power factor correction equipment installed. Over the last four...
Jan21-09 06:26 PM
dlgoff
5 1,862
well im not sure if this is the right thread cuz im new, but i wanted to know. what are the most efficient ways of...
Jul11-12 10:20 AM
sophiecentaur
31 10,322
Hello guys, If form example I am given the sequence impedance of a cable ( positive, negative, zero) Will I use all...
Jun30-07 07:45 PM
bigjoe5263
3 6,456

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