A large capacitor of 1000 µF is charged by a steady current of 1 mA until it reaches a voltage of 100 V. At that voltage, the charging circuit is disconnected. a) Calculate how long the charging takes. b) A 10 kN resistor is connected across the capacitor to discharge it. Sketch a graph of the current I in the resistor as a function of time, with appropriate numbers and units marked on the axes.

Principles of Physics: A Calculus-Based Text
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ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
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Chapter21: Current And Direct Current Circuits
Section: Chapter Questions
Problem 55P
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A large capacitor of 1000 µF is charged by a steady current of 1 mA until it reaches a voltage of
100 V. At that voltage, the charging circuit is disconnected.
a)
Calculate how long the charging takes.
A 10 k2 resistor is connected across the capacitor to discharge it. Sketch a graph of the
current I in the resistor as a function of time, with appropriate numbers and units marked
on the axes.
b)
Transcribed Image Text:A large capacitor of 1000 µF is charged by a steady current of 1 mA until it reaches a voltage of 100 V. At that voltage, the charging circuit is disconnected. a) Calculate how long the charging takes. A 10 k2 resistor is connected across the capacitor to discharge it. Sketch a graph of the current I in the resistor as a function of time, with appropriate numbers and units marked on the axes. b)
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