Recent content by Agent

http://img366.imageshack.us/img366/5171/phwq5.jpg Hello there. In lab, we measured vectors. I'm having a little concern on how to get X and Y. If I follow the books method, R_calc comes out too small compare to measure R. (Big % error). X: 15.5+12.4cos37 = 25.4 Y: 0+9.3sin37 = 5.4 R: square...

Hey, I'm currently stuck with this question. There are several parts to this question. http://img373.imageshack.us/img373/8480/questionscj3.png I know alpha should be around .9-1 but I don't think I know the formula for IB.

No, thanks, I got it now. Sry, I didn't have time to post. Berkeman hit the spot. :) This is actually for computer class. We are learning how to use excel by using formulas and such. These were questions to think about. Thanks for the help.

Hey! I'm not sure where this goes but it has to do more with math than electrical. To start things off, we were given Voltage (10v) and a resistor source (100ohms). This had to be done in excel, where we would enter the formula for 11 values and excel would calculate the answers. Then we graph...

Good news. I started the whole thing over. I found another mistake on the k-mart which added too extra NAND gates. I ran it and now it works out fine. Thanks for the help.:cool:

Thanks a lot. It really helped. I'm going to continue tomorrow because like you said, it is tedious. One mistake and the whole thing goes wrong.

The mistakes on the k-map/circuit are corrected now. Still getting the wrong answer but getting closer, I think. This is the way I learned it, just started so that's probably why. As long as I get the circuit right, I could careless which way is done. :)

I understand it. The thing is I can't find that wire (or gate) that is located wrong.

Hey, I have some problems with my synchronous counter. Here is what I got. sorry for the big and bad quality of the pic. My scanner sucks :( Here's the karnaugh map. I need to simplify them and use only NAND and inverters if needed. http://img101.imageshack.us/img101/7335/hw4na.jpg I need to...

That was my work, I just didnt go through the steps because its hard to write it out here. Anyways, here's the first. 1. C=Q/V ES= 1 - CV^2 2 ES=energy stored C=1,000mF V=18 so then its 162? I'll be back with the 2nd question.

cool, he's showing some work if anyone here can help. https://www.physicsforums.com/showthread.php?p=971776#post971776

Hey, just started this topic and I could use some help. Can someone explain the results? I got a bunch of equations and my head is starting to hurt. First question. Find the amount of energy stored in a 1,000-microfarad capacitor that has been charged to 18 volts. And A 220-microfarad...

I know where I made the mistake. I'd multiplied instead of adding. I don't know why. Thank You.

Hey, I'm stuck in one of the problems I was given. We just started it, so I'm a bit confused. It says: 3.3k resistor is in series with 4.7k resistor. Calculate the percent of the total applied voltage that would appear across the 4.7k resistor. I got this answer but I'm not sure if it is right...

Hey, has anyone ever used Multisim? I have to draw diagrams of And gates, etc. The light bulb has to light up and the timer has to display numbers. This is what I got so far: http://img108.imageshack.us/img108/7775/and4ic.jpg Maybe the wiring are messed up?