QUESTION 1: Consider an ideal inverting op-amp in Figure 9.8 with R2 = 103 kN and R¡ = 15 kN. Determine the ideal voltage gain Ay and input resistance R; if a second 103 kN resistor is connected in parallel with R). A, (V/V) Format : -3.9464963538264 R; (kN) Format : 47 R2 R1 2) vo Figure 9.8

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Operational Amplifier

An operational amplifier also called op amp is an integrated circuit or analog circuit that takes input as a differential voltage and produces output as a single-ended voltage. It is an IC that can amplify weak electric signals.An op amp has one output pin and two input pins. The basic role of an opamp is to amplify the voltage difference between the two input voltages. It is also used in filtering or to perform mathematical operations or in signal conditioning.