I am currently writing a lab report for an introductory lab in electrical engineering on the subject of op-amps. One question that I'm stuck at is
With the op-amp operating in its linear regime, what voltage would you expect at the negative (inverting) input terminal, with respect to ground? How does this compare with your measurement of \$V_n\$?
I think the goal is to test the idealness of an inverting op-amp with the data that I have here:
The op-amp circuit:
simulate this circuit – Schematic created using CircuitLab
Supply voltages:
\$V_{cc+}=15.664\$ V
\$V_{cc-}=-15.143\$ V
I was taught that the golden rule of an ideal inverting op-amp is \$V_n=V_p\$. But what is \$V_p\$? It can't be the input voltage because of the golden rule. How do I answer those questions with the given data?