P-7.23 The switch in the circuit below has been in position "a" for a long time. At t = 0, the switch is thrown from position "a" to position "b." If V, = 120 V, determine : a. The voltage across the capacitor, v, (t), for t 20 b. The current through the 40K resistor, i, (t), for t 20 V 5k 120 V 10k a t = 0 b + 160 μF 40k 25k 10k

P-7.23 The switch in the circuit below has been in position "a" for a long time. At t = 0, the switch is thrown from position "a" to position "b." If V, = 120 V, determine : a. The voltage across the capacitor, v, (t), for t 20 b. The current through the 40K resistor, i, (t), for t 20 V 5k 120 V 10k a t = 0 b + 160 μF 40k 25k 10k

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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You are an electrician working in an industrial plant. You discover that the problem with a certain machine is a defective capacitor. The capacitor is connected to a 240-volt AC circuit. The information on the capacitor reveals that it has a capacitance value of 10 mF and a voltage rating of 240 VAC. The only 10-mF AC capacitor in the storeroom is marked with a voltage rating of 350 WVDC. Can this capacitor be used to replace the defective capacitor? Explain your answer.
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