I'm trying to replicate a simple circuit that I designed in SpiceIV. Here's what it looks like
I should be getting ~23 mA of current flowing through this circuit by ohm's law. However, when I measure it using my multimeter if I connect the COM lead to the positive side and the INPUT lead to the negative side I get a result of around -23.5 to -25 mA, which falls within the tolerances of my multimeter.
However, if I switch the leads and put INPUT to positive and COM to negative like I should I get a reading of exactly 13 mA every single time. I cannot for the life of me figure out why the current measurement is correct going one direction, but not correct going the other. I've checked the fuses (~0.8 ohms average when I touched the leads together) and checked my math 100 times.
Can anyone with more experience than me shed some light on this problem? I don't understand it at all. For all intensive purposes SpiceIV shows current in the negative which means my reading is "right", but shouldn't I be seeing the same number going the other way?
EDIT: For clarification I am measuring the current with the multimeter in series with the rest of the circuit.