Question

Ventricular defibrillation During ventricular fibrillation, the muscle fibers of the heart's ventricles undergo uncoordinated rapid contractions, resulting in little or no blood circulation. To restore the heart's normal rhythm, a defibrillator sends an abrupt jolt of about $-0.20 \mathrm{C}$ of electric charge through the chest into the heart. How many electrons pass through the body during this defibrillation?

Name: Problem 1, Chapter 17: College Physics Explore and Apply
Uploaded: 2020-10-14T17:45:37-08:00
Duration: 59 s
Channel: Chinmai Managoli

   Ventricular defibrillation During ventricular fibrillation, the muscle fibers of the heart's ventricles undergo uncoordinated rapid contractions, resulting in little or no blood circulation. To restore the heart's normal rhythm, a defibrillator sends an abrupt jolt of about $-0.20 \mathrm{C}$ of electric charge through the chest into the heart. How many electrons pass through the body during this defibrillation?

College Physics Explore and Apply

Eugenia Etkina; Alan… 2nd Edition

Chapter 17, Problem 1

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Solved by Expert Chinmai Managoli

10/14/2020

Step 1

The defibrillator sends a charge of $-0.20 \mathrm{C}$ to the heart. We know that the charge of a single electron is $-1.6 \times 10^{-19} \mathrm{C}$. We need to find out how many electrons make up this charge. Show more…

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Ventricular defibrillation During ventricular fibrillation, the muscle fibers of the heart's ventricles undergo uncoordinated rapid contractions, resulting in little or no blood circulation. To restore the heart's normal rhythm, a defibrillator sends an abrupt jolt of about $-0.20 \mathrm{C}$ of electric charge through the chest into the heart. How many electrons pass through the body during this defibrillation?

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Key Concepts

Electric Charge

Electric charge is a fundamental property of matter that results in electromagnetic interactions. Measured in coulombs (C), it represents the quantity of electricity and is a central concept in calculations involving electrical phenomena, linking macroscopic and microscopic scales.

Elementary Charge

The elementary charge is the smallest unit of charge carried by a single proton or electron, with a magnitude of approximately 1.602 x 10^-19 coulombs. This constant is key for converting a total measured charge into the number of individual charged particles, such as electrons.

Particle Number Calculation

This concept involves determining the number of charged particles by dividing a total macroscopic charge by the charge of a single particle. It is an essential bridge between the macroscopic measurements used in devices and the microscopic world of electrons and ions.

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