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Unformatted text preview: ECE 2300 CIRCUIT ANALYSIS HOMEWORK #9 1. A complex number with a phase between 90 and 180 (in the 2 nd quadrant) is added to a second complex number with a phase between 90 and 180 (in the 3 rd quadrant). What is the sign of the real part of this sum? 2. A complex number with an arbitrary real part and a positive imaginary part is multiplied by a second complex number that is imaginary, with a negative coefficient for j . What can you say about the product? 3. Solve the following equation for m and n . You should assume that m and n are real numbers. The variable n is an angle, and you should show your units. ( 29 67.3 4.794 1.875 23 m j j n + = 4. Find the nonzero value of for which the expression for Z() given is purely real. Give your answer as a function of R , L , and C . ( 29 ( 29 ( 29 ( 29 ( ) . 1 R j L j C Z 1 R j L j C + = + + 5. In the circuit given, the voltage source v S (t) is made up of the summation of several frequency components. The circuit is operating in steady state.The circuit is operating in steady state....
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This note was uploaded on 09/04/2011 for the course ECE 2300 taught by Professor Staff during the Spring '08 term at University of Houston.
 Spring '08
 Staff

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