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Test 2 sol

# Test 2 sol - Name EE411 Fall 2009 Test 2 Page:1 Please show...

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Name: _________________________________________________ Page:1 EE411 – Fall 2009, Test 2 Please, show all your work on the test sheets. A correct answer without supporting work gets no credit. One sheet of notes is permitted. Write your name in all pages. Do not un- staple. You have 60 minutes to complete the test. Problem 1 (30 points) Consider a series RLC circuit excited by a sinusoidal voltage source with an amplitude of 10 V. Consider also that R = 5 , L = 2 mH, and C = 8 mF. Please answer the following questions: a) Please write down the expression without numbers for the current phasor I in terms of the input voltage phasor V s . b) What is the (resonant) frequency of the voltage source that yields the maximum magnitude for I ? Write down the expression without numbers for I at this specific condition. c) What is the maximum magnitude of I ? (with numbers)

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Name: _________________________________________________ Page:2 EE411 – Fall 2009, Test 2 Problem 2 (30 points) The figure shows the equivalent circuit of a typical industrial load with capacitors

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Test 2 sol - Name EE411 Fall 2009 Test 2 Page:1 Please show...

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