The circuit shown below uses an ideal op-amp powered by sufficiently large volta

Question

The circuit shown below uses an ideal op-amp powered by sufficiently large voltages tVCC so that the numerical results obtained in the following situations remain within the limits set by them. One end of the resistor connected to the inverting input N is held at a fixed potential of+10 V while the potential of the non inverting input P is changed in several steps to the indicated values. 0 Calculate all numerical values required to complete the table below. Pay special attention to the voltage signs and current directions defined in the figure. VN VO V1 + 10.0 VI + 10.0 V + 10.0 V1.0 V + 10.0 V2.0 V VP IO 0.0 V

Explanation / Answer

Here we use the general principle of op-Amp.It has infinite input resistance so no current passes through the op -amp.i.e. current passes through 1Kohm equal to current passes through 5Kohm,

In order to derive the output voltage I use the same principal

(V1-Vn)/(R1)=(Vn-Vo)/R2

putting all the values we get the result given in table.

V1 Vp Vn I1 I0 V0 10V -1.0V -1.0V 11mA -11mA -56V 10V 0.0V 0.0V 10mA -10mA -50V 10V +1.0V +1.0V 9mA -9mA -44V 10V +2.0V +2.0V 8mA -8mA -38V

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