It is required to connect a 10-V source with a source resistance of 100 k2 to a 1-k2 load. Find the voltage that will appear across the load if: (i) The source is connected directly to the load. (ii) A unity-gain op-amp buffer is inserted between the source and the load. In each case find the load current and the current supplied by the source. Where does the load current come from in ce(ii)?

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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.