100_1_07S_EE100_MT2

# 100_1_07S_EE100_MT2 - EE100 07S Mid-Term 2 Name_| LAST...

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EE100 07S Mid-Term 2 Name _____________|____________ LAST FIRST Student ID _____________________ DO NOT OPEN UNTIL INSTRUCTED TO DO SO. •We will copy some graded exam papers for archival purposes! •Put your name in the blank on EVERY page. •Show your setup. •Circle your answers. •Add notes to help the graders determine your intentions. Problem Value Score Problem Value Score 1 16 3 36 2 48 TOTAL 100

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EE100 07S Mid-Term 2 Name _____________|____________ LAST FIRST Student ID _____________________ 1. (16 points) Find the damping ratio ζ .
EE100 07S Mid-Term 2 Name _____________|____________ LAST FIRST Student ID _____________________ I m 2. (48 points) The switch has been in its closed position for a long time. At t=0, it opens. Find the expression for i(t) for t>0.

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EE100 07S Mid-Term 2 Name _____________|____________ LAST FIRST Student ID _____________________ 3. (36 points) v(t)= 240.4cos5000t 10 μ F 3.2 mH Find the power dissipated in the 12 resistor.
EE100 07S Mid-Term 2 Name _____________|____________ LAST FIRST Student ID _____________________ 1. (16 points) SOLUTION Find the damping ratio ζ . P4.50, Hambley, 3rd ed., p. 188 " = 1 2 RC = 1 2 500 ( ) 1000 e # 12 ( ) = 1 e 6 \$ 0 = 1 LC = 1 10 e # 6 ( ) 1000 e # 12 ( ) = 1 e 7 % = " \$ 0 = 0.1

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EE100 07S Mid-Term 2 Name _____________|____________ LAST FIRST
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