a. Is this an example of positive feedback or negative feedback? b. If the circuit is an amplifier, what is the gain and is it inverting or noninverting? If the circuit is a comparator calculate the threshold voltage. ANSWER EVERYTHING FOR UPVOTE THANK YOU R2 5 ΚΩ ww R1 3 ΚΩ ww OA V_in sine 1 kHz Đ R2 1 ΚΩ ww V_out 3 R1 5 ΚΩ ww OA V_in sine 1 kHz +12V R2 1 kn ww V_out R1 5 ΚΩ ww + OA V_in sine 1 kHz +12V -12V V_out

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