Recent content by Evilinside

I get that collector current is fixed so as collector current goes up, the voltage drop across the collector resistor goes up and the collector-emitter voltage goes down. Which is why it is basically zero at saturation. But for ac it is not zero but negative when input is positive. why is this...

Yes I finally got the answer i think. I set the square wave input to 2V peak and i got an answer of (-4Vp/.000047)*t and since the frequency of the input square wave is 2000khz, the period is 500us. so (-4v/.00047)*t should be the graph of a triangle wave for the an interval of 0-500us and...

I'm doing homework where i have to find a function representation of the output signal from a simple op amp integrator circuit with a 4.7k resistor and a .01uf capacitor. I know I'm supposed to use the equation -1/rc * int vin(t) but the input is a square wave signal. I never learned how to...

I'm currently studying transistor amplifiers and It is not entirely clear how impedance relates to amplification. For the emitter follower configuration, the book I'm reading implies that low output impedance means high voltage gain and, for any amplifier in general, high input impedance is...

Oh well, I guess not. I found a post that pretty much answers the question anyway http://forum.bodybuilding.com/archive/index.php/t-118174351.html in case anyone else wants to know.

I currently attend a community college and am enrolled in the electrical engineering program, which has been great so far, electricity is extremely interesting to learn about and I assume the same thing about working with it. Anyway, I was just wondering tho if it was realistic to think I could...

I'm what you would, in the bodybuilding world, call a hardgainer. No matter what I do I can't gain weight. I used to eat lots of carbs on a 4000 Calorie diet and nothing happened as far as weight gain. I would just get frequent urination and a fruitish odor in the back of my mouth and would...

Thanks for the support. I certainly was in no hurry to learn the Scheme thing. I definately will start learning C++, if I find one introductory enough, and the move on to Java and C#. I can't wait to simply learn what the differences are. I will look into the Theory and Foundations aspect of...

Hi, I often try to expand my knowledge studying on my own. So most of my learning is on my own. I wish now to start studying Computer Science, but honestly, I haven't the slightest idea where to begin. I downloaded the free book Concrete Abstractions by Max Hailperin, Barbara Kaiser, and Karl...

I don't mean to sound incompetent, but I'm having difficulty studying Allen Hatcher's "Algebraic Topology" based his explanations of these objects alone. For example, A torus is the product of two S1 spheres. Algebraically that's simple, but intuitively and visually that makes no sense to me...

Right now, I am currently trying to study algebraic topology. In my geometrical studies I keep seeing objects such as toruses and n-balls. While an explanation of these objects is usually supplemented, I wanted to know if there was actually some subject or course out there from which I can...

Wasn't really sure where to put this question as it is not really an academic or career question and since it about String Theory, I thought I should put it here. I was wondered what type of math I need to know to read an introductory course on string theory. I'm going through a mathematical...

I was wondering what exactly Plancks constant describes. Do all photons have the energy h and the measure of the energy in an electromagnetic wave is just related the the frequency which photons make contact with some particle, keeping in mind that they all still have the same exact energy? Or...

I wanted know how objects move through space, say in between galaxies furtherest from a gravitational field. I was wondering why is it that they don't move at extremely high speeds. If these objects have almost no forces acting of them or more importantly no means of resistance, then what...

Gosh, If I got that question on a test I would have gave response along the lines of Say the viscous fluid was in a test tube and the test tube is being rotated. Then the entire solid will attempt remain inact or rigid. For example if the bottom half of the test tube has force exerted on it...