Ok, im doing my electornics AS CW At the moment and am working out the power over each resistor (to check if its safe ). So, I was working out the current through each resistor, and it turns out its in the magnitude of micro ampere. I was just wondering if this was normal for a 15V Regulated supply to produce such currents! it seems very small, is micro amper common ?
Someone correct me if i'm wrong, but isn't it more what the resistor will allow to pass through it rather than what the power supply will deliver? So if a resistor will only allow lets say 100mA through it, that's all will be drawn from the supply. Eg. if you have a 10k resistor and a 12v power supply, then using I=V/R the resistor will allow 1.2mA through it (and so 1.2mA will be drawn from the supply) What're you making for your coursework, anyway? Interested cos i'm doing my coursework right now too
its technically a sound to light converter, altohugh my name of preference is "wavelength superaccelerator" i didnt know it decided, and tbh i have just worked out that its the sig gen providing most of the amage and i was just thinking and it works out i need not have made this thread because iw asnt looking at my figures correctly
I'll leave it open for now for cpemma or someone to tell me if I was right about the current thing...
this took me like 30 minutes to make if i remeber correctly and we are thinking about the same thing.
uhhh, very well done but if you have to learn about everything at the same time (that being the point of the course ) it can take longer. plus i had to use normal electronics, maybe it could have been a bit swifter had i been able to use a microchip thing you can do it with p[retty much nothing compared to what i used
Imagine a device as 'sucking' curent. So you've got this guy (your device) sucking current (delicious and fruity Vimto), out of a glass, how much he is getting is dependent on wether he is drinking directly from the glass or through a straw (resistor). So the cureent depends on how much the device can suck (or wants) and, if a straw (resistor) is involved, how thick is is (how much it will let by).
but a straw would not suck more than it can take, and resistors blow up if too much current goes through them! also the voltage (pressure) would be far greater through a straw then trying to suck out of the hefty opening off a glass!
You mean your straws don't explode Look, its VImto, its cheek suckingly fruity, its delicious, it doesn't nedd accuracy.
if u suck super ammounts of vimto you would heat up the straw and eventually melt it or at least collapse it . . . surely either way = catastrpohic faliure ie lack of vimto
