Electronics Definition and 643 Threads

I get to have *one* cheat sheet on both sides for my electronics exam tomorrow. ONE sheet to put THE ENTIRE course of formulas on. I can't write all that so neatly, so I asked the professor if it's ok to type it. So if anyone needs an EE cheat sheet, here you go! I need to review this crap...

Okay, I've got a differential amplifier biased by a constant current source at the source of each mosfet. There is a resistor R connected to the drain of each transistor and those resistors are also connected to a +5 DC. The second stage is a common source amplifer. The drain of transistor 2...

I am thinking of joing up with the army when old enough, although I don't know witch branch would best suit a radio electronics based career. Anyone have any ideas?

Some really good stuff here. http://people.deas.harvard.edu/~jones/ap216/lectures/lectures.html R. VICTOR JONES Robert L. Wallace Research Professor of Applied Physics Division of Engineering and Applied Sciences Pierce Hall Havard University 29 Oxford St. Cambridge, MA 02138

Hi dudes, sorry if this is the wrong area for this post. I am doing a career in electronics. I realize that math classes are of a very poor quality (Algebra an Calculus I) Lots of topics were discarded cause lack of time, so i decided to study them on my own. The question is, what topics in...

There must be another way to remove heat from electronic equipment rather than passing cool air over the surface? What about light waves? Can they cool a surface? Can they absorb heat, reflect away heat? Any one have any lateral thoughts?

Note: edits by forum moderator appear in blue text. Moderator's note: several related posts have been merged into a single thread. -- Redbelly98 http://www.ibiblio.org/obp/electricCircuits/AC/index.html by Tony R. Kuphaldt. Moderator's note: above link is broken. There is a...

I'm having a little difficulty understanding a few key electronic concepts and am hoping a some of you may be able to shed light. 1) In a power source (i.e. battery) I understand that E = V / D. Despite the size and mass of an electron being incredibly small; when enter the field- do they...

What I really need is an analogue function generator of some sort. Right now I am using a tektronix cfg250 which can put out up to 2mhz frequencies (square, sine, sawtooth, etc). Is there anything similar to this? I don't want anything with a screen on it...but it looks like tektronix doesn't...

R_out |-------------***------------o------------------| |........+......| |.......V_signal......* R_in -..V_out, perfect..........* -.............| |.............| |........-.....| |-----------------------------o------------------| =...(ground).........= Say that circuit 1 is the...

I have little experience with electronics so I was wondering if this idea was feasible. If so, I'll know that I'm on the right path; any suggestions are welcomed. I would like do a simple project for myself. It basically goes like this: I want to take a remote control for a tv, and where the...

hi What is difference between electronics and physics. Regards, Ali Rizwan (Web Developer) Aztek Computers

Is There Any Good Website That Can Teach Electronics Ii Furthermore Ineed Some Advice On How I Can Study This Course

What are the solid state electronics devices? What are they used for?

Imagine a cube where all sides have a resistor, now remove one resistor from it and replace it with an ohmmeter, the ohmmeter reads 100ohms, calculate the resistance of each resistor. By the way each resistor is the same value. How do you go about doign this question?

I've just been browsing the courses I'm going to get here in Ghent if I apply for photonics next year. There's one major subject at least that revolves around electronics, sensors, actuators etc. Now: I really really hate electronics. Really. I'm not really practical with them, probably...

Hi guys, Just a question with a current vs voltage graph (or any graph with voltage on the horizontal axis)...why does voltage sometimes go into the negative section?

I've got my final Electronics paper to hand in on Thursday and would be grateful is someone could give my answers the once over :) Question 1. The circuit (the attached picture) is connected up with switch S closed. The variable resistor, R is adjusted so that the micro-ammeter reads...

What is the difference between the words " electrical " and " electronics"?

Hi all. I've come to realize there's a giant gap in my electrical engineering knowledge. I've studied plenty of math, physics, circuit analysis, and digital electronics but yet can't figure out how to troubleshoot consumer electronic devices or construct simple gadgets. When I open up a DVD...

Just started studying course of ESC-101 Introduction to ELectronics...but did not do well in first mid semester...any suggestions on how to improve in Electronics Most Welcome Thx

I have my question,solution and doubt in the attachment that followed.Thanks for anybody that spend some time on this question.

I have my solution and mt doubt in the attachment that followed and I hope that somebody will help me figure out.Thanks for anybody that spend some time on this question.

1. Through what potential difference would an electron need to be accelerated for it to achieve a speed of 50.0% of the speed of light, starting from rest? The speed of light is c = 3.00 108 m/s. >> I'm really not too sure what to do with this problem. I took .50*3.00e8 and got 1.50e8...

This is one of the problems I have for homework: Consider a BCD-to-seven-segment decoder and suppose that the BCD data are represented by the logic variables B8, B4, B2, and B1. For example, the decimal number 7 is represented in BCD by the word 0111 in which the leftmost bit is B8=0, the...

Digital Electronics Boolean Reduction! Help Please Ok i need to figure out how to reduce this I've been working on it for 2 days straight and can't figure it out...please help...its due tommorow :rolleyes: :cry: (ab)(\overline c + \overline d)+(a+b)(\overline c \overline d)

http://www.electro-tech-online.com I didn't want to forget the site, and figured that others may like it as well. If anyone else knows some good electronics site feel free to add them to this thread.

what are some good book on general circuit design? I know how to read schematics and the basics of electronic components (transformers, trnasistors, ect..). I want to learn how electronics work, so I can build projects myself instead of putting together canned ones. hopefully you will be...

Can anyone recommend an introductory electronics book in which there are a number of solved problems? I really need practice on circuit analysis before a TEST or EXAM so that when I see new questions FOR THE FIRST time, I don't struggle understanding what is going on. James

This is not really a homework question but I need to find a book of questions that I can practice at the introductory electronics level. Does Schaum' s have one at the university level? I find that assignments are not enough and I need practice because when I see a new circuit for the first...

anyone could recommend a practical + scientific (2 in 1) electoronics book? I have a Microelectronic Circuits book but it is only theoretical. It teaches circuits but I want to actualy make some...

Hi there all! I am sitting for an electronics subject for an Applied Physics course I'm studying here in Greece, but as the educational system does not make you attend the courses (in class), I don't have any solved exercises on Electronics! I made a quick search all over the net, found...

I am trying learn (re-learn in most cases) basic electronics I have found this piece of obscure software called Edison (same company also make a program called Tina) and need more .prb (problem) files to learn much more from it. Are these free, does anybody know where I can get any from.

http://www.betanews.com/article/1088039192

Any suggestion when it comes to starting a business in electronics (something with automotive)? With our current economy, jobs are hard to get.

Hi all! I'm a student in APU University, Cambridge, England. One of my modules is Analogue Electronics, Exams are a few weeks away and i wanted to get an idea of how well I've grasped some of the concepts. We have been given a sheet to work through but have no one to mark it as all lectures...

I've been reading, trying to learn electronics. Everything I've read so far seems to be either components or finished circuits. I want to read about the 'inbetween' process. The 'why' for each step of the design. Why use this battery. Why use that size wire. Why put a resistor here. Why use a...

Need practice in Analog/Digital Electronics... I've taken Analog Electronics and am now taking Digital Electronics (in college), does anybody know of good sites where I can check some basic circuits, like how to build an AM radio, or cool projects like that... Not too complicated stuff, just...

Biology Vs Electronics ! Hi! I am not a “Biology” man! But I have an interesting question that I always think of: We have seen many sci-fi usually Asimov stories that robots are becoming - humans! These homo sapiens as far as I know very complex system specially the brain – nervous system...

I'm quite interested in electronics, circuits, etc... after my brief introduction to them in Physics class. I'd really like to take the time, as a hobby, to learn how to design and create circuits that will perform simple tasks --> eventually graduating to more difficult design. Does...

I think, myself included [and mainly:smile:], there are people at PF that would like to know good testing equipment for electronics and such [multimeters etc]. Anybody with knowledge on the subject is welcome to suggest products and personal experience is very good also.

After a lot of efforts, here are the new kinds of R&D websites: www.electronics-ee.com www.optics2001.com Thousands of links to useful docs. Engineers to answer your questions.

Hi guys, I’m interested in learning about electronics and circuitry. I was a CS major but now I’m majoring in CIS. Ever since i was 7, i always open every electronic gadget my parents bought, which i proceeded to look through and "mess around". Most of the time, I didn't ruin the product, but...