In the figure the ideal battery has emf = 64 V. the resistances are R= 46 kQ and R-is uncharged. WWhen the switch is closed at timet= 0, what is the current in (a) resistance 1 and (b) resistance 2?(c) A long time later, what is the current in resistance 2?11 kQ. and the capacitor(a) NumberUnits(b) NumberUnits(c) NumberUnits

Given: Emf=E=64 V Resistances: R1=46 kΩR2=11 kΩ

Answered: In the figure the ideal battery has emf…

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter18: Direct-Current Circuits

Section: Chapter Questions

Problem 37P: Figure P18.37 shows a simplified model of a cardiac defibrillator, a device used to patients in...

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Figure P18.37 shows a simplified model of a cardiac defibrillator, a device used to 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 patients torso, modeled as the resistor Rtorso, allowing the hearts normal rhythm to be reestablished. (a) If the capacitor is initially uncharged with C = 8.00 F and = 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 patients torso with, Rtorso = 1250 , calculate the voltage across the capacitor after 5.00 ms. Figure P18.37
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