Timeline for Inverting Op Amp: Why does current flowing into output seem to magically reappear at ground?
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
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| Oct 2, 2015 at 12:52 | comment | added | LeoR | @M.Hassaan The 0V level of a circuit like this is arbritrary and selected by the user. Current flows from the more positive to the less positive voltage. If you connect the "ground" (ie 0V) to a terminal at -12V, current will flow from the ground node to the -12V node. In this case your inverting amplifier has a negative output, and so current flows from ground to the amplifier output. | |
| Oct 2, 2015 at 11:45 | comment | added | Icy | The circuit is: gnd - power supply (V2 or V3) - op-amp - output resistor - gnd | |
| Oct 2, 2015 at 11:10 | comment | added | Hassaan | Yes, but how can current flow from the ground node??? | |
| Oct 2, 2015 at 11:00 | history | answered | Jefferson Allan | CC BY-SA 3.0 |