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**Unformatted text preview: **below. Section 9.7 Source Transformations and Thevenin-Norton Equivalent Circuits Problem 4 Norton equivalent circuit The circuit shown below is represented in the frequency domain by a Norton equivalent circuit. When an inductor having an impedance of j100 is connected across the device, the value of V o is 100 120 mV. When a capacitor having an impedance of -j100 is connected across the device, the value of I o is -3 210 mV. Find the Norton current I N and the Norton impedance Z N for the unknown device in the box. Problem 5 Operational Amplifiers in the frequency domain The op-amp shown in the above circuit is ideal. Find the steady-state expression for v o (t) when v g =20cos(10 6 t) volts....

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