The figure below shows how a bleeder resistor (R = 250 kΩ) is used to discharge a capacitor (C = 90.0 µF) after an electronic device is shut off, allowing a person to work on the electronics with less risk of shock. (a) What is the time constant? _______s (b) How long will it take to reduce the voltage on the capacitor to 0.100% of its full value once discharge begins? _______s (c) If the capacitor is charged to a voltage V0 through a 150 Ω resistance, calculate the time it takes to rise to 0.865V0 (this is about two time constants). _______s
The figure below shows how a bleeder resistor (R = 250 kΩ) is used to discharge a capacitor (C = 90.0 µF) after an electronic device is shut off, allowing a person to work on the electronics with less risk of shock. (a) What is the time constant? _______s (b) How long will it take to reduce the voltage on the capacitor to 0.100% of its full value once discharge begins? _______s (c) If the capacitor is charged to a voltage V0 through a 150 Ω resistance, calculate the time it takes to rise to 0.865V0 (this is about two time constants). _______s
Chapter10: Atomic Physics
Section: Chapter Questions
Problem 42Q
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The figure below shows how a bleeder resistor (R = 250 kΩ) is used to discharge a capacitor (C = 90.0 µF) after an electronic device is shut off, allowing a person to work on the electronics with less risk of shock.
(a) What is the time constant?
_______s
(b) How long will it take to reduce the voltage on the capacitor to 0.100% of its full value once discharge begins?
_______s
(c) If the capacitor is charged to a voltage V0 through a 150 Ω resistance, calculate the time it takes to rise to 0.865V0 (this is about two time constants).
_______s
Transcribed Image Text:Electronic
R
circuit
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