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Seriously what the gently caress is this. It's like black magic and cryptography. I'd rather not fail electricity.
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# ? Oct 23, 2014 02:45 |
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# ? Mar 19, 2024 04:18 |
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electricity goes out, electicity comes in, and it never leaves. what are you gonna do with all that electricity??
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# ? Oct 23, 2014 02:45 |
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All I know is you can model a whole pile of poo poo as a power source and a resistor.
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# ? Oct 23, 2014 02:46 |
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Which is very good to me.
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# ? Oct 23, 2014 02:46 |
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drilldo squirt posted:All I know is you can model a whole pile of poo poo as a power source and a resistor. So you can explain mesh analysis to me too right?
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# ? Oct 23, 2014 02:47 |
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Yeah, it's cool as all hell.
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# ? Oct 23, 2014 02:48 |
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Man, it sure is tricky being a first year engineering student! EDIT: Saw the League of Legends avatar, no wonder you have trouble.
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# ? Oct 23, 2014 02:48 |
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Basically loops.
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# ? Oct 23, 2014 02:49 |
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Shaman Ooglaboogla posted:Man, it sure is tricky being a first year engineering student! Yeah I'm basically retarded. Help.
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# ? Oct 23, 2014 02:49 |
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It's like, instead of taking top lane you decide to jungle mid game, get it op?
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# ? Oct 23, 2014 02:49 |
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I didn't look it up but is this the one about how to efficiently jerk off as many people as possible in the shortest amount of time? I think it is.
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# ? Oct 23, 2014 02:50 |
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I was trying to think up something complicated for basic electronics but it's baby stuff for idiots.
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# ? Oct 23, 2014 02:52 |
hope this helps op https://www.youtube.com/watch?v=cd4jvtAr8JM&hd=1 https://www.youtube.com/watch?v=TdaM5Mv-TTo
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# ? Oct 23, 2014 02:54 |
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You can tell the difference between a thevanin and a norton equivalent because the way the resistor in the norton one is hooked up will consume power even when nothing is connected to it making it warmer than the thevanin one so if they ask you to tell the difference on a test just write that the question is ill-posed since the diagrams don't have temperature information
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# ? Oct 23, 2014 02:55 |
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I love electricity because unlike fire it really is raw energy instead of just a bunch of atomic particles vibrating really fast
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# ? Oct 23, 2014 02:57 |
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Shaman Ooglaboogla posted:Man, it sure is tricky being a first year engineering student! the first search result for tzeentch is a warhamemr40k wiki
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# ? Oct 23, 2014 03:03 |
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Serious answer. https://www.khanacademy.org/science/physics/electricity-and-magnetism/v/circuits-part-4 You're welcome. That'll be 5 bux or an AV cert
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# ? Oct 23, 2014 03:06 |
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So if I can't do mesh analysis and have a hell of a time deriving something like the formula for turning voltage into RMS I should probably just give up?
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# ? Oct 23, 2014 03:18 |
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watch all of this guy's videos https://www.youtube.com/watch?v=RtlYi1yLTVQ
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# ? Oct 23, 2014 03:21 |
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Stick Figure Mafia posted:watch all of this guy's videos i prefer these: https://www.youtube.com/watch?v=g91xkISmp2g
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# ? Oct 23, 2014 03:22 |
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Methanar posted:Seriously what the gently caress is this. It's like black magic and cryptography. V = I * R Voltage = Current * Resistance
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# ? Oct 23, 2014 03:22 |
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if youre going into electrical engineering you are majorly hosed if this is trippign you up
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# ? Oct 23, 2014 03:30 |
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the real answer is go to your prof's and TA's office hours and have them work through examples with you step-by-step until you understand it enough not to need hand-holding. This might be an adjustment since you're not in high school anymore and they're not teaching to a test but with practice you will learn to think through things on your own.
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# ? Oct 23, 2014 03:31 |
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if youre not going into electrical engineering why the hell are you learning it
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# ? Oct 23, 2014 03:31 |
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if u can't write a computer program to do all your electrical homework for you you should just drop out now
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# ? Oct 23, 2014 03:31 |
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proof of concept posted:the real answer is go to your prof's and TA's office hours and have them work through examples with you step-by-step until you understand it enough not to need hand-holding. This might be an adjustment since you're not in high school anymore and they're not teaching to a test but with practice you will learn to think through things on your own. also if your test is tomorrow, either get a sick note or else straight injure yourself to get more time to study
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# ? Oct 23, 2014 03:32 |
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be sure to update us once you start doing poo poo with rlc circuits and have to do actual, real math to figure things out
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# ? Oct 23, 2014 03:36 |
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wait i looked it up and it's just that bullshit with the resistors and poo poo from like phys 101. i thought this was goign to be like some actual math stuff
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# ? Oct 23, 2014 03:46 |
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I welcome my Mcdonalds/unemployment future.
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# ? Oct 23, 2014 03:56 |
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some sort of fish posted:the first search result for tzeentch is a warhamemr40k wiki You buy yourself that nooby baby avatar?
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# ? Oct 23, 2014 03:57 |
Al Cowens posted:Serious answer. woah poo poo you can learn electronics thru there, goddamn I thougt it was all math Stick Figure Mafia posted:watch all of this guy's videos I feel like we could learn a lot from this man's work. https://www.youtube.com/watch?v=TdaM5Mv-TTo
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# ? Oct 23, 2014 04:07 |
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no
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# ? Oct 23, 2014 04:08 |
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steve thevenin? man gently caress his worthless rear end thoerem. he couldn't even make his lamp work
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# ? Oct 23, 2014 04:10 |
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actually you know what, im bored, so lets go over mesh theory with an ~example~ have this awful drawn picture of some poo poo i made up on the spot. we're gonna find out all the currents! mesh analysis splits this up into three circuits because you can figure out numbers if you do it, wow! cool! so lets figure out the 3 ohm resistor first heres circuit 1. youve got V1=5, R1=3, and if you do ohms law you should just get I=V/R, right? wrong fuckass. look at this: this circuit is also using the resistor and loving things up with kirchhoff bullshit. what an rear end in a top hat!! we gotta figure this poo poo out. anyways you notice how you can think of all the current going clockwise? heres the direction of I1 and I3 when theyre going through that 3 ohm resistor: theyre going the wrong way so you gotta subtract them when you do ohms law. so basically you get V1=R1*(I1-I3) when you look at it. cool. do the same thing with the other circuit, and you get V3=R3*(I3-I1)+R3*I3. the R3*I3 part is there because I3 still has to travel through that resistor, but it doesnt have another current loving with it. okay so basically to calculate this, set them both to 0 -V1+R1*(I1-I3)=0 -V3+R1*(I3-I1)+R3*I3=0 and youre set to start plugging in values. first, grab all the values you know. R1= 3 ohms R3= 5 ohms V1= 5V V3= -2V "but wait" your idiot child mind might be asking, "why is V3 negative???" good loving question. this is why: the battery is going against the direction i arbitrarily set for the current, so its negative. ANYWAYS plug them in and you get this after some ~math~ 2 + 3*I1 - 3*I3 = 0 -5 - 3*I1 + 8*I3 = 0 then when you solve you get I1 = -0.067 and I3=0.6 or something. current through the 3 ohm resistor is like .6667 A, or -.6667 A, depending on how you look at it!! so about I2 its not doing anything. I2 = 0 Control Volume fucked around with this message at 05:01 on Oct 23, 2014 |
# ? Oct 23, 2014 04:57 |
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Don't get so upset OP. Focus on how well rested you feel are after sleeping through all those linear algebra classes that were SOOOO boring.
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# ? Oct 23, 2014 05:19 |
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Just wait until you get to transient circuit analysis. Differential equations are always loads of fun.
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# ? Oct 23, 2014 06:16 |
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Alrighty then smartypants, tell me something. Tell me what the total charge is on the surface of the solid described by x^2+2y^2+3z^2, where the point P(1,4,9) is a point on the surface, in the region between the plane z=1 and the paraboloid z=x^2+y^2 if the electric charge density is proportional to the distance from the origin to the point (x,y,z). I mean, I think I need to create a level surface using the point and the equation, then solve for the surface area in the region described (so it'd be the square root of the sum of the first partial derivatives wrt x and y plus 1, as a double integral) but I can't get the surface into a form where z is a function of x and y. And then I can't get past that.
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# ? Oct 23, 2014 06:24 |
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This ain't for you kid
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# ? Oct 23, 2014 06:34 |
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gently caress Your Website posted:This ain't for you kid gently caress you, and gently caress your advice.
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# ? Oct 23, 2014 06:47 |
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# ? Mar 19, 2024 04:18 |
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texasmed posted:V = I * R lol there isn't even an 'i' in current idiot.
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# ? Oct 23, 2014 06:53 |