It's a voltage divider. http://en.wikipedia.org/wiki/Voltage_divider http://en.wikipedia.org/wiki/Voltage_divider Caution: I'm a CS major, not an EE, so your

It's a voltage divider. http://en.wikipedia.org/wiki/Voltage_divider http://en.wikipedia.org/wiki/Voltage_divider Caution: I'm a CS major, not an EE, so your probably want to verify my assertion before trusting it...