ROCKET SCIENTIST
Member level 3
Ha ha ha, seems like a big discussion is going on here on my question. Well, I'm not gonna quote any previous comments, just wanna say one thing that I thought myself. From the very basic of electrical theories, we know that voltage is the cause for current and current is the effect of voltage. Moreover as we know, no effect happen without its cause, so we can say, NO VOLTAGE, NO CURRENT !!!
That's why now I think no independent current source can ever exist. Because, every time you have to create voltage first to produce current.
But dependent current sources can exist (transistor circuits), in which we get a fairly constant current over a limited range, but also with a driving voltage !!
Thanks everyone for valuable comments.
Regards,
RS.
That's why now I think no independent current source can ever exist. Because, every time you have to create voltage first to produce current.
But dependent current sources can exist (transistor circuits), in which we get a fairly constant current over a limited range, but also with a driving voltage !!
Thanks everyone for valuable comments.
Regards,
RS.