Recent content by Abbeyb37

I apologise if this seems like a random question, but I can't seem to explain it... In these pictures, why is it, that at some points during the descent of the colored fluid, that it appears colorless: http://abbeyb37.googlepages.com/coke.jpg http://abbeyb37.googlepages.com/coke2.jpg...

If a potential divider consists of 2 resistors, one of which is a variable resistor, how is it possible to get an output potential difference of 0V across one of the resistors? All the books say that it is possible to achieve an output of 0V across one of the resistors, in a potential divider...