I have never done electrical before, and need to create a simple circuit with basic ohms law calculations to show my lab PI that I can handle the next electrical steps. I need help. He set me up with this thing (all I will be touching is the breadboards and the 5 V lead and ground), (
http://www.globalspecialties.com/ele...0-pb-505.html), 3 different resistors, a multimeter, and alligator clips (one red one black).
First to make sure that the 5 V output thing was working I connected the multimeter right to ground and the 5 V lead and measured the voltage to be 4.993 V. Then I put the 220 ohm 5% resistor on the breadboard, attached the red alligator clip to the 5 V output, and then to one side of the resistor, and then black to ground and other side of resistor.
I then touched the multimeter to the appropriate sides on the resistor and got a voltage reading of 4.983 V. That means my current should be about 22 mA right? So I changed the setting on the multimeter (this one:
http://en-us.fluke.com/products/digi...ultimeter.html ) to read DC mA in the circuit - and got 0. I tried this with the other 2 resistors and keep getting 0.
Why?
Sorry if this is a super beginner/noob question I'm just confused as to what to do next since today was my first day ever touching electrical/making a circuit.
Thanks!