5) For the circuit below, the switch is initially open(and has been for a long time), and at t = 0 the switch is suddenly closed. After 20 ms, the voltage across the capacitor is 2.0 V. Remove the capacit and find the Thevenin equivalent voltage Va and resistance Ra of the remaining circuit (with the switch closed, of course). 200 6V 3k C 3k 300 200 Va = 6) What is the resistance R that goes into making the time constant t = RC for the above circuit ? Hint : Remember that we can reconnect the capacitor to the Thevenin equivalent circuit instead of the actual circuit to answer this question. Just sayin! R = 7) What is the capacitor voltage Vo a long time after the switch is closed? Hint : Again you can use the Thevenin equivalent circuit to answer this. Vo =

5) For the circuit below, the switch is initially open(and has been for a long time), and at t = 0 the switch is suddenly closed. After 20 ms, the voltage across the capacitor is 2.0 V. Remove the capacit and find the Thevenin equivalent voltage Va and resistance Ra of the remaining circuit (with the switch closed, of course). 200 6V 3k C 3k 300 200 Va = 6) What is the resistance R that goes into making the time constant t = RC for the above circuit ? Hint : Remember that we can reconnect the capacitor to the Thevenin equivalent circuit instead of the actual circuit to answer this question. Just sayin! R = 7) What is the capacitor voltage Vo a long time after the switch is closed? Hint : Again you can use the Thevenin equivalent circuit to answer this. Vo =

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter19: Capacitors

Section: Chapter Questions

Problem 2PA: You are an electrician working in an industrial plant. You discover that the problem with a certain...

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