multisim Multimeter

[bbbeenn32]

I have a problem reading the Ohm meter in multisim software. I know the answer shoud be the two resistors added together, however the ohm meter gives me an answer in GOhm's, I don't want it to read the ground. I attached a screen shot that shows my problem. how can I get it so the Ohm meter reads 150+330=480 Ohms,

Thanks

Ben

[johnsold]

Ben,

I am not sure how Multisim's ohmmeter works but you could not measure the resistance that way in a real circuit. A physical ohmmeter applies a small current to the resistance being tested and measures the voltage across it. In your circuit the voltage will be 12 V. From Ohm's law the current would be 10 nA which is not unreasonable for a simulated ohmmeter.

Try disconnecting VS.

Lynn

[Dennis_Knutson]

Another post with the same basic misunderstanding - http://forums.ni.com/t5/Circuit-Design-Suite/Multimeter-problem-gt-values-way-off/td-p/523706

Even with vs disconnected, you will not read 480 ohms, of course. Have you taken a freshman dc electronics course?

[shoreraptor]

Ben,

Ohmeters are not used when power is applied to the circuit; which was the case in your schematc. So, you need to use the Ohmeter with power off; which you can do with a switch. Once your circuit is power off, you are now measuring a parallel resistance circuit because both legs are tied to ground. I have connected a PNG that shows that you are in fact measuring a parallel-series resistance of 338.6 ohms. 

Hope this helps.

[bbbeenn32]

Thank you all.

I was having a stupid moment.

Ben