Recent content by Gaz1873

So you think the question is poor but the answer is correct? Thank you very much for your help with this. It's much appreciated.

I'm a bit confused by that thread. I've read it through and I understand that the difference between Vin and V+ will determine the polarity of the output voltage. The output is given as 2.4V. From that I can deduce that Vin is less than the 1.69V I calculated earlier. The question states that...

Hi gneill, Yes that is the exact question funny old thing and I have the exact same answer using the formula I stated above. That thread seemed to go off on a tangent a little. I get 1.69v using R1/(R1+R2) x Vout. Shouldn't it be -1.69v?

Homework Statement Calculate the input voltage to an Op-Amp circuit. The circuit is exactly an ideal non-inverting amplifier except the inputs have been switched in that the supply is connected to the inverting input and the middle of the potential divider is connected to the non-inverting...