Problem 5. The voltage across a 0.6 µF capacitor is zero for t < 0. For t ≥ 0, the voltage is 40e 15,000t sin 30,000t V. a. Find the initial current in the capacitor in the direction of the voltage drop. b. Find the power delivered to the capacitor at t = t/80 ms. c. Find the energy stored in the capacitor at t = +/80 ms.

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 5PP: Three capacitors having capacitance values of 20F,40F, and 50F are connected in parallel to a 60 -...
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Problem 5.
The voltage across a 0.6 µF capacitor is zero for t < 0. For t ≥ 0, the voltage is
40e-15,000+ sin 30,000t V.
a. Find the initial current in the capacitor in the direction of the voltage drop.
b. Find the power delivered to the capacitor at t = t/80 ms.
c. Find the energy stored in the capacitor at t = +/80 ms.
Transcribed Image Text:Problem 5. The voltage across a 0.6 µF capacitor is zero for t < 0. For t ≥ 0, the voltage is 40e-15,000+ sin 30,000t V. a. Find the initial current in the capacitor in the direction of the voltage drop. b. Find the power delivered to the capacitor at t = t/80 ms. c. Find the energy stored in the capacitor at t = +/80 ms.
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