1) For the circuit in Figure, what is the value of RN between terminals a and b, in Ω? Questions 11 and 12 refer to this same circuit? 2) For the circuit of Figure 3, what is the value of iN between terminals a and b, at Amps? 3) What should be the value of a resistor connected between and b if you want it to consume the maximum possible

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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.