Final answer:
To calculate the voltage output (vout) in the given circuit, analyze the circuit using Ohm's law and principles of parallel and series resistors.
Step-by-step explanation:
To find the voltage output (vout) in the given circuit, we need to analyze the circuit using Ohm's law and the principles of parallel and series resistors.
1. Calculate the equivalent resistance (R_eq) of the parallel combination of r1 and r2: R_eq = (r1 * r2) / (r1 + r2)
2. Calculate the total current (I_total) flowing through the parallel combination: I_total = v1 / R_eq
3. Calculate the voltage drop across rf using Ohm's law: V_rf = I_total * rf
4. Calculate the voltage output (vout) by subtracting the voltage drop across rf from v2: vout = v2 - V_rf