General Physics, 2nd Edition
2nd Edition
ISBN: 9780471522782
Author: Morton M. Sternheim
Publisher: WILEY
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Chapter 20, Problem 87E
To determine
The value of the external resistance
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The capacitor shown below has an initial voltage of 0.15 V before the switch is closed. The resistance is 8.5 x 106 ohms and the capacitance is 2.0 microfarads. How long after the switch is closed in seconds does it take for the voltage across the resistor to drop to 0.083 V?
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What is the smallest capacitor needed in a computer power supply in order to produce at least 4.45 V for 0.21 s after the power goes off? Assume that the resistance of all the components of the computer motherboard is 6 Ohms and that the capacitor and motherboard are powered with a 5-Volt power supply.
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Chapter 20 Solutions
General Physics, 2nd Edition
Ch. 20 - Prob. 1RQCh. 20 - Prob. 2RQCh. 20 - Prob. 3RQCh. 20 - Prob. 4RQCh. 20 - Prob. 5RQCh. 20 - Prob. 6RQCh. 20 - Prob. 7RQCh. 20 - Prob. 8RQCh. 20 - Prob. 9RQCh. 20 - Prob. 10RQ
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