The figure below shows how a bleeder resistor (R = 236 kn) is used to discharge a capacitor (C = 80.7 pF) after an electronic device is shut off, allowing a person to work on the electronics with less risk of shock. Electronic circuit (a) What is the time constant? (b) How long will it take to reduce the voltage on the capacitor to 0.100% of its full value once discharge begins? (c) If the capacitor is charged to a voltage Vo through a 133 N resistance, calculate the time it takes to rise to 0.865V, (this is about two time constants).
The figure below shows how a bleeder resistor (R = 236 kn) is used to discharge a capacitor (C = 80.7 pF) after an electronic device is shut off, allowing a person to work on the electronics with less risk of shock. Electronic circuit (a) What is the time constant? (b) How long will it take to reduce the voltage on the capacitor to 0.100% of its full value once discharge begins? (c) If the capacitor is charged to a voltage Vo through a 133 N resistance, calculate the time it takes to rise to 0.865V, (this is about two time constants).
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter21: Circuits And Dc Instruments
Section: Chapter Questions
Problem 71PE: Figure 21.55 shows how a bleeder resistor is used to discharge a capacitor after an electronic...
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