For the shown operational amplifier circuit knowing that $V_{in} = 3.9 \text{ V}$, $R = 4.5 \text{ k}\Omega$, and $R_f = 2.1 \text{ k}\Omega$. the output voltage will be equal to _____ Select one: $\circ$ 12.26 V. $\circ$ 5.72 V. $\circ$ 4.46 V. $\circ$ None. $\circ$ 2.08 V.
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We'll call the node connected to the non-inverting input of the operational amplifier as Node A, the node connected to the inverting input as Node B, and the output node as Node C. Since the operational amplifier is in negative feedback configuration, we can Show more…
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