G'day all, I need help with a basic electronic circuit. I have to designed a 3V circuit to run 3.5V LED's (30mA). I want to run everything on 2* 1.5V AA batteries. I'm told I need to have resistors on each LED, from the calculations I have done, I need resistors of -0.01666 value. R= (3 - 3.5)/30 Ha...