op-am exc oper 1oop gan (a) Design R1 and R2 so that the voltage across the 250 N resistor is 4 V. (b) Let's reverse the above problem. Now you need to calculate the output voltage where the resistor valu R and R2 are known. If R1 = 2 , R2 = 1 Q, V.= ? 5V R1 -5V 1002 2502 5V 0.5 HA R2 -5V

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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.