Multisim and Ultiboard

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Same circuit twice with different results

I've been having some trouble having Multisim match a circuit I have modeled in MATLAB. During the troubleshooting process I put voltage probes on each wire used. The circuit portion in question involves an AC Voltage source connected to a resistor which is then connected to an inductor. I made a copy of the circuit and started from scratch. One of the circuits gives a voltage drop across the resistor, while the other one doesn't drop any voltage at all. I've checked all of the connections and they are all good. The only difference I can see is that one has the pins labeled 1 - 2 while the other is 2 - 1. Does anyone know what the problem is here? I shouldn't not be getting two different results for the same circuit.

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Hi Jmerc,

 

Maybe you can post the circuits so that we can compare.

Tien P.

National Instruments
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