Electronics Definition and 643 Threads

I am a final year student of b.tech (electrical and electronics) at NITK,india. I want to pursue my masters degree in Canada or USA (preferably Canada) with a long term intention of settling down in said countries. I have mainly done projects in the field of robotics,signal processing and AI...

I am a final year student of b.tech (electrical and electronics) at NITK,india. I want to pursue my masters degree in Canada or USA (preferably Canada) with a long term intention of settling down in said countries. I have mainly done projects in the field of robotics,signal processing and AI...

Please forgive me if I am posting this in the incorrect forum, and if I am, could you be so kind and point me in the correct direction? I work for a Engineering Manufacturing company located in California, we are contracted with various military, medical, mining companies and we have ran into...

How are light bulbs turned on and off in sequence for some signs and flat screen televisions? How are electromagnets turned on and off in sequence to accelerate maglev trains and coil gun bullets? How are the CCD arrays in electronic cameras turned on and off in sequence to transmit the...

Hello, I've been accepted to university to both fields that I have chosen, but I can't decide, they both seem good. The subjects are - Electronics and bionics, Mechatronics. A little about my backround; I've graduated in industrial automatics, and know thing or two in programming and I...

I'm new to electronics and still exploring stuff and learning basics. Coming from a computer science background, I was wondering if electronic circuit design can be treated in an abstract manner like we do with algorithm design. For instance, do we have the same flexibility like in designing...

Hi, I need to put an electronic measurement system into a very nasty environment. An Ore pile where the minerals are being extracted using sulphuric acid and the temperature is 100-150 degrees C. I need an enclosure which will resist the acidic environment but conduct the heat to my...

I understand AC is economic for transportation and easy to produce from converting mechanical energy into electrical energy. However, why don't electronics turn on and off because of this alternating nature of the current? For light bulb, maybe it does turn on and off and our eyes don't have...

I am a physics major and have to make a choice between either of these two papers. The numerical mathematics is at the equivalent to US senior level and the electronics paper is equivalent to US junior level. I'm quite interested in biophysics and/or medical physics for grad school but I'm not...

First post. Great to be here. :) So, I'm stuck in deciding which of these courses to take next semester. I'm a current rising sophomore at UT Austin who has just switched from EE to physics-still nervous about that decision, but that's a separate topic. I've already got Waves(the first...

Hi First I would like to say that I am not an electrical engineering student. I study physics, and unfortunately I lack a lot of basic electrical know-how. I know the theory behind e.g. a low-pass/high-pass filter and stuff like that, but when it comes to implementing things and -...

hi, i really interested to become a scientist (either in physics or electronics) at present i completed my second year of b.tech degree(in ECE), please guide me to become a very good scientist... thanks in advance

A CMOS inverter is built using a PMOS transistor with KP = - 0.5 mA/V2 and KN = 1.2 mA/V2. If VDD = 5V, VTN = 1.0V, and VTP = - 1.2V, find the input cross-over voltage VIC.

http://en.wikipedia.org/wiki/Mechatronics According to the defintion, "Mechatronics is the combination of Mechanical engineering, Electronic engineering, Computer engineering, Software engineering, Control engineering, and Systems Design engineering in order to design, and manufacture useful...

HI, I am looking for the ''Physics of Quantum electronics vol.8 chap.5'' I could no where find this book /journal or the conference proceeding . does anybody have an Idea How can find this ?well this is the exact information That I am looking for ...

Does anyone know where i can score a site with lots of problems pertaining to electronics equipment. Trying to understand the basics (resistors now) and when i google it i just get tons of crap but no problems to solve. anyone? Thx :)

My guitar amp's been acting up for the last year or so, and as I'm finishing up the second year of my electrical engineering degree, it's been occurring to me that my inability to do anything to even try to fix it is pretty sad. I'm pretty sure that something like this isn't outside of the...

Hi everyone. The last part of my electronics finals this year is industrial electronics, so I decided to go over the questions in industrial electronics...I don't have final answers in our manual :( so I'd appreciate any feedback here. Homework Statement...

Homework Statement A 12V battery has an internal resistance of 6Ω. a) If this battery is connected to a 10Ω load, calculate the power dissipated by the load. b) Draw a graph showing how the terminal voltage of the battery and the current it can supply vary with load. c) Derive a value...

Assuming I actually get the position, I will be interning this summer at one of the Hydroelectric dams in Alabama (working for Alabama Power of course). As far as course work, I will be graduating with Knowledge of trigonometric AC circuit analysis, DC circuit Analysis, Analog electronics (BJT...

Hi all: I am trying to experiment with an older (10 plus year old) electronic inspection system to learn how electronic inspection works. The camera I bought is an old Cognex DVT model 630 that requires a 24 volt source. I have been able to get one of our people to rig me up a system with a...

I would like start doing some electrical tinkering/engineering as a hobby. In particular, I want to be able to build my own FM radio transmitter (some time in the far future, most likely, I realize it is an advanced goal from where I am now). I don't have the money or time to enter any kind of...

Homework Statement In the following drawing is given a intro signal to flip-flop type D, negative edge triggered. Also is given the clock pulse signal. Copy to your notebooks these signals and add intro signal Q. Presume that in starting condition Q=0. Also, neglect the delay times of the...

Hi guys , I don't know anything in electronics past how to calculate voltage and currents in circuits containing resistors and batteries . I lack the practical knowledge of how to construct real circuits . I want to know how to design real circuits . Can some one please point me to resources on...

Electronics questions -- help needed Homework Statement Revered members, I list below some of the questions asked in a competitive exam to test the proficiency of electronics. I request the members to give the answers. I have produced the answers which i have written, below each question. I...

Hey guys, I have designed and built digital circuits with relatively low knowledge on circuit analysis (resistor nets, Wheatstone bridges, etc.) or analog electronics. I do know how to utilize Kirchhoff's circuit laws and Ohm's law. Is it necessary to understand analog systems and circuit...

Homework Statement Problem:1→In FOLLOWING CIRCUIT CALCULATE VOLTAGE ACROSS 2Ω RESISTOR http://www.freeimagehosting.net/t/dvnne.jpg Problem:2→CALCULATE THEVENIN'S EQUIVALENT RESISTANCE ACROSS TERMINAL 'A'&'B' FOR FOLLOWING CIRCUIT http://www.freeimagehosting.net/t/6zuj4.jpg This is...

got my hands on a keychain-lcd-picture frame thingy there are 30 pins! how do i figure out what pin does what? thanks!

Anyone intend to start using the new MIT course?: BBC News: http://www.bbc.co.uk/news/education-17012968 "An electronics course, beginning in March, will be the first prototype of an online project, known as MITx. The interactive course is designed to be fully automated, with successful...

The current flowing in an electrical circuit is given by i=3t amperes where t=time in seconds. Determine the charge Q in coulombs passing between t=0 and t=4 seconds. Note; charge Q=It Coulombs, where I=current in A and t=time in s Please help!

Homework Statement Given the function: http://img26.imageshack.us/img26/9718/elel0.jpg A) Write the truth table of the function F (A, B, C, D) B) Present the function F (A, B, C, D) via Karnaugh Map C) Express the function F as the sum of multiplications with minimum literals...

Hello all, I am currently working on modelling organic FETs. I would like to know if there exists any book that can help me in modelling i.e. I have a curve and I need a method or approach as to how this can be represented using an eqn. Also I need some literature recommendation for...

A pacemaker stimulates heart tissue with R of 100ohms. Pulse amplitude is 1.2 Volts & pulse duration is 0.5ms. Stimulates at 70bpm Current drain = 2microamps Calculate energy delivered to heart from pacemaker at each pulse. i got P=V^2/R = 0.0144 Then Energy = Power*time =...

OK, so this is one of the problems I need to solve. I have made the schematics for the two cases and now I need to do the transition processes, meaning I have to make a system of equations, that will be used as a Matrix, so I can figure out the determinant (that's how we call them in our...

Hi, I was just wondering how these electronic components connected together on a PCB with an antenna produce frequencies. 1. I found schematics for a circuit that transmits FM but it doesn't actually explain anything, you basically connect a microphone, a transister, a variable resistor...

Just like the tittle. I never understand why EMP destroy electronics. People talked about a nuclear explosion will destroy electronic that is on, not off. Why? I just never understand this.

Homework Statement http://img193.imageshack.us/img193/6627/circuitg.jpg So I got this circuity thingy and I'm told that each LEDs only lights up at 1.4 V. I am asked what should be the vaue of Vin1 where the green LED lights up. Now, I see I have 2 comparators here. Each one is 15...

A little electronics question about logical gates... Basically I want to see if I got it right? http://img853.imageshack.us/img853/7681/laster.jpg

I recently found out that I didn't pass my Electronics 1 class. I missed the grade letter of a C by 3 points. I have heard that their is online Electronics 1 class online. I go to Lamar University and I was wondering if there are any online Electronics 1 class that is calculus based that can be...

Hey all, was wondering if someone knows of a book (if it's on safari books online, even better!), website or other source that teaches me -- a software guy -- the basics of electronics. Basically I want to know about voltages, generators, capacitors and everything in-between. Wanna have my...

I was arguing with a friend (it's been a while since she studied electronics), that you can't this turn circuit: http://img689.imageshack.us/img689/5395/r123y.jpg Into the following circuit by combining R2 and R3 as though they're parallel...

Hi, I think that anyone with some programming skills can create apps/games and sell it but what about Electrical/electronics engineers is there anything like this: Projects that one can work on during spare time that do not need sophisticated equipments and that one can sell other than KITS...

I also needed to explain my answer... I hope it's all true. Can you tell me?True or False ------------- The Effective Voltage in our houses (Israel) is 220 Volts, therefor the Max VOltage is 380 Volts. FALSE 220\sqrt[]{}2 = 311 --- The equivalent inductance between points AB in the following...

Can you help confirm whether my answers are correct or not?------------------------------ True or False (+answer must be explained) Question #1: Ripple is an alternative component of the DC component of an electrical signal Answer #1: True. A period, accoriding to wiki, is "small unwanted...

Hello, I am trying to cool down an electronics cabinet using air at various conditions (Temperature). The cabinet contains components on the inside and each has an inlet and an outlet. The outlet is a circle hole or "orifice". I need to determine the size of the orifice to achieve an outlet...

Hello, Am from India and am going to finish my engineering in electronics and communications in 2012. I want to become an astronaut. I made wrong step while choosing the specialization in engineering. Now am searching for opportunities to become an astronaut. If you are...

This is my first semester as a EE undergrad and I'm having difficulty with my telecom class. These are my current classes: Physics Calculus Intro to C Programming Electronics and telecommunications. Everything else is fine. For telecom, I don't know why they are making us do it in the...

Pre-requisites for Nanotechnology/Nanoelectronics for an electronics undergrad?

Homework Statement Please see my attachment. From the circuit Energy transferred to the load E = Ir + IR, where r is the internal resistance and R is Load Resistance. so I = E/(r+R) Homework Equations The Attempt at a Solution The Power W is W = I2R = E2R/(r+R)2 Upto this i...

I'm in my 3rd year of a chemistry course but I have more of a passion for computers and technology than chemistry. I didn't know the difference between science and engineering before choosing this course but I've come to the conclusion that engineering is more the practical side of things...