R Rorso 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 R,rsn allowing the heart's normal rhythm t reestablished. HINT The voltage across a charging capacitor is AV = &(1 - e-(RC)) and the voltage across a discharging capacitor is AV = AVmaye e-t/(RC) Click the hint button again to remove this hint. (a) If the capacitor is initially uncharged with C = 8.25 µF and E = 1270 V, find the value of R (in ohms) required charge the capacitor to a voltage of 795 V in 1.20 s. (b) If the capacitor is then discharged across the patient's torso with Rerso = 1240 0, calculate the voltage (in V) across the capacitor after 4.50 ms.

R Rorso 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 R,rsn allowing the heart's normal rhythm t reestablished. HINT The voltage across a charging capacitor is AV = &(1 - e-(RC)) and the voltage across a discharging capacitor is AV = AVmaye e-t/(RC) Click the hint button again to remove this hint. (a) If the capacitor is initially uncharged with C = 8.25 µF and E = 1270 V, find the value of R (in ohms) required charge the capacitor to a voltage of 795 V in 1.20 s. (b) If the capacitor is then discharged across the patient's torso with Rerso = 1240 0, calculate the voltage (in V) across the capacitor after 4.50 ms.

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

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

The figure below shows a simplified model of a cardiac defibrillator, a device used to resuscitate patients in ventricular fibrillation.
S
R
Rorso
+
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 Rorso allowing the heart's normal rhythm to be
reestablished.
HINT
The voltage across a charging capacitor is AV = E(1 - e-t/(RC)) and the voltage across a discharging capacitor is AV = AV
maxe-t(RC)
Click the hint button again to remove this hint.
(a) If the capacitor is initially uncharged with C = 8.25 µF and Ɛ = 1270 V, find the value of R (in ohms) required to charge the capacitor to a voltage of 795 V in 1.20 s.
(b) If the capacitor is then discharged across the patient's torso with Rorso = 1240 0, calculate the voltage (in V) across the capacitor after 4.50 ms.
V

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