Problem 4 A voltage source of 90V is connected to a load through a switch. The load is a combination of a resistor of 400kN and an capacitor of 0.5µF in series. The capacitor has no stored energy when the switch is closed at t = 0, and the current begins to flow.

Problem 4 A voltage source of 90V is connected to a load through a switch. The load is a combination of a resistor of 400kN and an capacitor of 0.5µF in series. The capacitor has no stored energy when the switch is closed at t = 0, and the current begins to flow.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter20: Capacitance In Ac Circuits

Section: Chapter Questions

Problem 2PA: You are working in an industrial plant. You have been instructed to double the capacitance connected...

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1. A 2F capacitor is connected in series with a diode and a 60 resistor. The voltage of the battery is 9V. The forward voltage drop of the diode is 0.7V. Flip to close the switch at t=0. Determine the voltage and current of the capacitor at t=0, t=12s, t=24s, and t=36s. (The following table may help you with this question. Feel free to use this table (or not).) Vc VR I R1 60 H Time=0 Time=12s Time=24s Time=36s
2. The capacitor in the following figure .......
Inductance and Capacitance
You are an electrician working in an industrial plant. You discover the problem with a certain machine is a defective capacitor. The capacitor is connected to a 240-V AC circuit. The information on the capacitor reveals that it has a capacitance value of 10 μF and a voltage rating of 240 V AC. The only 10-μF capacitor in the storeroom is marked with a voltage rating 350 VDC. Can this capacitor be used to replace the defective capacitor? Explain your answer.