Help with voltage/resistor Answered
Hello. I bought some Christmas LED replacement bulbs but they have no specs with them. I decided to wire one up. I figured I would go with 1 . 5 volts at 7 1/2 mA. Using a 9 volt battery, I have a 1K ohm resistor. 9 - 1.5 = 7/ .0075.
My problem is, when I put my meter on it, the one side of the resistor is showing 9 volts, correct, but the other side is showing 3.5 volts. Shouldn't it only be reading 1.5 volts? What is wrong?
*I've had the LED lit up for over 25 minutes so far and it hasnt burned out yet.
EDIT: I just added a 10K resistor, so now I have 11K (in series), yet I am still getting a reading of 3.5 volts. I'm missing something here. lol I'm also getting a reading of about 9mA with 1K and 11K ohms. I'm lost.