Final-07May9

Final-07May9 - Name: ______________________ ID # :...

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Unformatted text preview: Name: ______________________ ID # : ________________________- 1 - Problem (1) (50 points) For the circuit shown below, select values for R 1 and R 2 such that v 2 = 8.5 V and no more than 1 mW is delivered by the voltage source. + R 1 R 2 + 12 V v 2 For the circuit below, find the contribution of the 5 A source to the current i , as shown. 12 10 40 20 5 60 120 5 A 3 A i Name: ______________________ ID # : ________________________- 2 - Design the circuit by selecting values for R 1 and R 2 , such that i L (0 + ) = 1 A and i L (4 ms ) = 0.37 A t = R 1 R 2 20 mH i L 3 A For the DC circuit shown, the switch was open for a long time, and it is closed at t = . Find I s 1 and I s 2 such that : i L ( t ) = 4.5 e t + 0.5 e 9 t + 9 for t + t = + I s 1 I s 2 3 H 1 27 F 30 i L Name: ______________________ ID # : ________________________- 3 - Connecting a load impedance to the ports of the linear circuit within the box and measuring the phasor current, the following values are reported.following values are reported....
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This note was uploaded on 12/29/2009 for the course ENG EK 307 taught by Professor Horenstein during the Spring '09 term at BU.

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Final-07May9 - Name: ______________________ ID # :...

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