The resistor has a resistance of 284 kΩΩ. (a) What is the time constant? s ( ± 0.1 s) (b) How long will it take to reduce the voltage on the capacitor to 1.0% of its full value once discharge begins? s ( ± 1 s) (c) If the capacitor is charged to a voltage ?0V0 through a 109 ΩΩ resistance, calculate the time it takes to rise to 0.9?0V0 (This is close to two time constants, but you should calculate it precisely.) ms ( ± 0.1 ms)
The resistor has a resistance of 284 kΩΩ. (a) What is the time constant? s ( ± 0.1 s) (b) How long will it take to reduce the voltage on the capacitor to 1.0% of its full value once discharge begins? s ( ± 1 s) (c) If the capacitor is charged to a voltage ?0V0 through a 109 ΩΩ resistance, calculate the time it takes to rise to 0.9?0V0 (This is close to two time constants, but you should calculate it precisely.) ms ( ± 0.1 ms)
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter21: Current And Direct Current Circuits
Section: Chapter Questions
Problem 67P: The values of the components in a simple series RC circuit containing a switch (Fig. P21.53) are C =...
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The figure shows how a bleeder resistor is used to discharge a capacitor after an electronic device is shut off, allowing a person to work on the electronics with less risk of shock. The resistor has a resistance of 284 kΩΩ.
(a)
What is the time constant?
s ( ± 0.1 s)
(b)
How long will it take to reduce the voltage on the capacitor to 1.0% of its full value once discharge begins?
s ( ± 1 s)
(c)
If the capacitor is charged to a voltage ?0V0 through a 109 ΩΩ resistance, calculate the time it takes to rise to 0.9?0V0 (This is close to two time constants, but you should calculate it precisely.)
ms ( ± 0.1 ms)
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