S R Riorso

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
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37. BIO Figure P18.37 shows a simplified model of a cardiac defibrillator, a device used to
resuscitate patients in ventricular fibrillation. When the switch S is toggled to the left, the
capacitor C charges through the resistor R. When the switch is toggled to the right, the
capacitor discharges current through the patient's torso, modeled as the resistor Ruorso ,
allowing the heart's normal rhythm to be reestablished.
a. If the capacitor is initially uncharged with C = 8.00 µF and ɛ = 1250 V, find the value
of R required to charge the capacitor to a voltage of 775 V in 1.50 s.
b. If the capacitor is then discharged across the patient's torso with Rorso = 1250 N,
calculate the voltage across the capacitor after 5.00 ms.
Figure P18.37
R
C
Rtorso
+
Answer
Transcribed Image Text:37. BIO Figure P18.37 shows a simplified model of a cardiac defibrillator, a device used to resuscitate patients in ventricular fibrillation. When the switch S is toggled to the left, the capacitor C charges through the resistor R. When the switch is toggled to the right, the capacitor discharges current through the patient's torso, modeled as the resistor Ruorso , allowing the heart's normal rhythm to be reestablished. a. If the capacitor is initially uncharged with C = 8.00 µF and ɛ = 1250 V, find the value of R required to charge the capacitor to a voltage of 775 V in 1.50 s. b. If the capacitor is then discharged across the patient's torso with Rorso = 1250 N, calculate the voltage across the capacitor after 5.00 ms. Figure P18.37 R C Rtorso + Answer
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