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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
meBigGuy
19 392
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
mwvivi
189 61,148
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
davenn
62 59,662
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 47,210
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Mar26-08 12:32 PM
berkeman
0 26,033
Hello! Just came across this video, https://www.youtube.com/watch?v=34r6RGF2JLA . Does anybody know how to explain...
T 02:57 PM
Kontilera
0 1
Hi, If you turn the bit in an electric drill will it generate electricity? What would you need to do for it to...
T 02:35 PM
psparky
1 101
Hi. I want to make a constant current driver for a Xenon arc lamp. It takes 12V as input, should give out 8A at 15...
T 12:00 PM
jim hardy
21 340
Hi, I recently conducted a lab experiment involving several mosfets of varying channel length and width and have...
T 11:48 AM
Lith1um
0 75
I am a mechanical engineer with little/no knowledge of wireless communication protocols.I have the need to transfer...
T 08:06 AM
sophiecentaur
6 207
This looks like it's mainstream work being done at the Naval Research Lab -- interesting stuff: U.S. Navy's new...
T 07:40 AM
f95toli
25 607
Hello PhysicsForum's, Over the last couple months I've been studying electrical engineering and I think I have pretty...
Y 09:58 PM
mjhilger
4 133
Is there a formula for finding the temperature of a wire? If I know how many volts I put on a wire, the resistance...
Y 09:46 PM
Chestermiller
18 386
Hi everyone! I really need your help on this one.. My boyfriends birthday is in about a month and I'm kind of...
Y 07:03 PM
berkeman
1 109
a. the commutator b. the brushes c. the field d. the armature I know this is a basic question, its off...
Y 02:36 PM
meBigGuy
13 344
Hello, I have to make a Display module in verilog and first time i want to create a ball which is moving and i have...
Y 02:22 PM
meBigGuy
3 118
On a trafo i just bought, it says COS = 0,99. What does this mean? Is there some angle involved in changing the...
Y 09:49 AM
jim hardy
3 120
Hi guys, If there was a voltage drop of 20V on a 3ph line of 347/600, is the voltage at the service 327V or...
Apr21-14 05:57 PM
Baluncore
4 136
When a batter is charging, lets say 3V battery.. when it's full, does it stops there or continues to take in charge?...
Apr21-14 12:53 PM
mjhilger
9 216
Hi Im doing a project based on half bridge converter of IR2153 which could produce a high output voltage using...
Apr21-14 11:30 AM
akbibi
4 126
I have a question regarding an amplifier circuit that Im designing. I was given a template to improve upon, and have...
Apr21-14 12:05 AM
Baluncore
14 242
Hi, I have a problem with my simulation (Multisim). I don't find the error. Voltage and current increase very high...
Apr20-14 10:44 AM
adjacent
6 408
Does changing the amplitude or width of these pulses do anything? I'm trying to figure out how to increase a motors...
Apr19-14 11:53 AM
Mordred
3 239
Let us consider an npn transistor. The emitter is grounded and the transistor is operating in CE mode. Consider that...
Apr19-14 10:15 AM
dlgoff
7 196
I need to project a solenoid. But i have some questions: - How much need to be thick enamelled copper? How i can...
Apr19-14 02:47 AM
Bern123
5 192
Hi Physics Forums, I'm a biochemist whose electronics experience is limited to resonant RLC circuits. I have been...
Apr18-14 07:14 PM
cis-ddp
4 196
Hello, I have two questions today Reading ahead of my class, I noticed that we were coming up on frequency...
Apr18-14 06:08 PM
analogdesign
6 185
Hi! I'm learning about solving transient circuits using the differential method and step-by-step approach and I'm...
Apr18-14 04:28 PM
berkeman
1 206
Hi, Why won't a generator composed of a stator that has 9 coils (each connected to it's neighbour in a ring until...
Apr18-14 08:05 AM
michael1965
8 282
Good afternoon PhysicsForums! I have a design for a voltage controlled current source. I've included the circuit...
Apr17-14 12:03 AM
jim hardy
11 244
Hello, I'm in Arizona and was looking to hook up some PV panels directly to the air conditioning unit pump. Is...
Apr16-14 10:08 PM
jim hardy
11 378
Which value of capacitor should i use in rectification so as to remove the ripples from the pulsating d.c? Having 50...
Apr16-14 10:07 AM
neeraj kaira
8 292
Serial communication:Following the Break is the Sync.field. The literature says that as there are no quartz or ceramic...
Apr16-14 08:40 AM
mjhilger
5 248
Does it matter if the resistor is on top or below a voltage source after doing a source transformation? According...
Apr16-14 12:51 AM
jim hardy
28 700
We know that the average power of A.C. is IVcosθ, where I and V are RMS and θ is the phase difference. I would like to...
Apr15-14 11:37 PM
mjhilger
3 261
First time posting a problem on here. Be gentle on me :) So I ran into this problem when I was testing the power...
Apr15-14 01:20 AM
Baluncore
9 256
Wow I have been away for a long time, good to be back. I am stuck with the follwoing problem, I want to use a...
Apr14-14 03:59 PM
jaap de vries
0 169
Hi All I am asking this question as a mechanical engineer, so please bare this in mind if you have the time to post...
Apr14-14 10:40 AM
Averagesupernova
11 393
So this is the circuit(with equations which were written by me, so I dont know if theyre correct)...
Apr14-14 09:29 AM
jim hardy
10 343
Hello, I want to simulate a coil of a transformer in Maxwell (3D), but my problem is: the coil design is not a...
Apr14-14 01:21 AM
gerbi
9 501
So I have been interested in learning about electronics for a while but I can only find good reading sources for...
Apr13-14 12:53 PM
sophiecentaur
4 300
Hi! I'm in a place where electricity goes out frequently; as a result I got a UPS which is powering my computer the...
Apr13-14 12:02 PM
vk6kro
16 519
That 2 terminals shows PD of 1 volt on Meter, but when shorted, there is no current shown on Meter? I checked and...
Apr12-14 12:40 PM
sophiecentaur
11 355
In optoelectronics and other nanotechnology applications (like organic photovoltaics, organic LEDs etc) most layers...
Apr12-14 02:52 AM
chpolyz
4 238
What is the general form of a first and second order dynamic system, in laplace and time space? I have some of the...
Apr11-14 05:15 PM
CraigH
0 267

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