Answered: Figure 20.38 The capacitor in a…

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter8: Capacitance

Section: Chapter Questions

Problem 45P: A 165F capacitor is used in conjunction with a dc motor. How much energy is stored in it when 119 V...

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(a) A defibrillator sends a 6.00-A current through the chest of a patient by applying a 10,000-V potential as in the figure below. What is the resistance of the path?
(b) The defibrillator paddles make contact with the patient through a conducting gel that greatly reduces the path resistance. Discuss the
difficulties that would ensue if a larger voltage were used to produce the same current through the patient, but with the path having perhaps 50 times the resistance. (Hint: The current must be about the same, so a higher voltage would imply greater power. Use this equation for power: P = I ²R .)

Figure 20.38 The capacitor in a defibrillation unit drives a current
through the heart of a patient.

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