College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Ohm's law
Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional…
Path of Least Resistance
In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.
Question
A heart defibrillator being used on a patient has an RC time constant of 17.0 ms due to the resistance of the patient and the capacitance of the defibrillator.
 
(a) If the defibrillator has a 7.40 µF capacitance, what is the resistance (in kΩ) of the path through the patient? (You may neglect the capacitance of the patient and the resistance of the defibrillator.)
(in kΩ)
(b) If the initial voltage is 12.0 kV, how long (in ms) does it take to decline to 5.80 ✕ 102 V?
(in ms)
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