# HW4 - ECE 2100 Homework 4 Professor Alyssa Apsel Subjects...

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ECE 2100 Homework 4 Professor Alyssa Apsel Subjects: Sinusoidal steady-state analysis, phasors, complex impedance, complex circuit analysis, AC power transfer, transformers, mutual inductance. 1) Prelab: Looking at the overlaid input/output sinewaves below, extract: -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 0 0.2 0.4 0.6 0.8 1 1.2 time, microseconds Voltage Input Output a. The frequency in Hz. b. The frequency in radians per second. c. The change in amplitude between input and output (that is the ratio of output to input amplitudes) d. The change in phase between input and output (Remember that time delay corresponds to negative phase) e. Write the transformation from input to output as a phasor, and as a complex number. That is, Vout = (A+jB)Vin. What are A and B? 2) Prelab: You will be analyzing the impedance and voltage-division characteristics of a several “black box” circuits in lab. Several example circuits are given below. In each case analyze the impedance across each pair of terminals (a complex

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HW4 - ECE 2100 Homework 4 Professor Alyssa Apsel Subjects...

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