Circuit Ro Figure 21.50 A bleeder resistor R discharges the capacitor in this electronic device once it is switched off.

University Physics Volume 2
18th Edition
ISBN:9781938168161
Author:OpenStax
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Chapter10: Direct-current Circuits
Section: Chapter Questions
Problem 36P: Consider the circuit shown below, (a) Find the voltage across each resistor. (b)What is the power...
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An electronic apparatus may have large capacitors at high voltage in the power supply section, presenting a shock hazard even when the apparatus is switched off. A “bleeder resistor” is therefore placed across such a capacitor, as shown schematically in Figure, to bleed the charge from it after the apparatus is off. Why must the bleeder resistance be much greater than the
effective resistance of the rest of the circuit? How does this affect the time constant for discharging the capacitor?

Circuit
Ro
Figure 21.50 A bleeder resistor R discharges the
capacitor in this electronic device once it is switched off.
Transcribed Image Text:Circuit Ro Figure 21.50 A bleeder resistor R discharges the capacitor in this electronic device once it is switched off.
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