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Unformatted text preview: Will be posted prior to each Quiz ECE331 – Section 001 Name: ___________________ Instructor: Prof. B.J. Baliga Print Clearly Quiz 3:_February 23, 2005 Problem 1:_Capacitor Transient (50 points + Bonus 10 points) The circuit shown below is operating in steady-state with the switch CLOSED. The switch is then opened at t = 0. (a) Use Steady-State Analysis with the values given in part (d) to obtain the voltage V C (0-) across the Capacitor BEFORE the switch is opened. Draw the equivalent circuit for this condition. (10 points) (b) Use Steady-State Analysis using the values given in part (d) to obtain the voltage V C across the Capacitor a LONG TIME AFTER the switch is opened. Draw the equivalent circuit for this condition. (10 points) (c) Derive an equation for V C (t) governing the transient AFTER the switch is OPENED at t=0 expressed in terms of the circuit element V s , R 1 , R 2 , and C . (10 points) (d) Solve the above equation to obtain all the values for the coefficients for V C...
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This note was uploaded on 05/19/2008 for the course ECE 331 taught by Professor Baliga during the Spring '08 term at N.C. State.
- Spring '08
- Electrical Engineering