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1. In the circuit shown below, the op-amp is ideal, the transistor has VBE = 0.6 V and β = 150. Decide whether the feedback in the circuit is positive or negative and determine the voltage V at the output of the op-amp
(A): Negative feedback, V = 2 V
(B): Negative feedback, V = 5 V
(C): Positive feedback, V = 0 V
(D): Positive feedback, V = 10 V
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