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ENGR 210 HW12_f08 - below Section 9.7 Source...

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ENGR 210 Fall 2008 Homework #12 Due November 19, 2008 Problem 1 Basic Electrical Phasors Consider the circuit shown below. (a) What is the frequency of the capacitor current in radians per second?(b) What is the reactance of the capacitor? (c) What is the current i(t) in the circuit shown below? (d) What is the voltage v(t) across the inductor? (e) What is the phase angle of the voltage in (d)? (f) What is the voltage v(t) across the capacitor? (g) What is the phase angle of the voltage in (e)?
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Section 9.8 The Node Voltage Method Problem 2 Node Voltage Method Use the node-voltage method to find v o (t) in the circuit shown below.
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Section 9.9 The Mesh Current Method Problem 3 Mesh Current Use the mesh-current method to find expressions for V o (t) and I o (t) in the circuit shown
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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 Ω is connected across the device, the value of V o is 100 ∠ 120˚ mV. When a capacitor having an impedance of -j100 Ω 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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