Question: If the amplifier indicated by the box above, has an open loop gain as well as input impedance of oo, which of the following

If the amplifier indicated by the box above, has an open loop

If the amplifier indicated by the box above, has an open loop gain as well as input impedance of oo, which of the following statements are true ? Feedback factor $\beta = 1/ R_2$ The feedback is voltage sampling, voltage mixing. The input voltage to the amplifier is 0 Feedback factor $\beta = R_1/(R_1 + R_2)$ The feedback is voltage sampling, current mixing Feedback factor (\beta = 1/ R_1) The circuit is that of a voltage amplifier The circuit is that of a transimpedance amplifier $v_o = v_i (-R_2/R_1)$ $v_o = v_i (1+ R_2/R_1)$ Ri

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