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Part A The human heart consists largely of elongated muscle cells, some 100 µm long and 15 um in diameter. In its resting state, a cell contains two concentric layers of charge, which confine the electric field to the cell membrane, as in the first figure. When the heart contracts, a wave of depolarization sweeps through, depleting charge and giving each cell a dipole moment, as in the second figure. As a result, the entire organ acts like an electric dipole, producing an external field, which is indirectly detected by electrocardiography. Although the direction of the heart's dipole moment varies, the third figure is typical. In answering the questions that follow, consider the heart in isolation-don't concern yourself with the effect of surrounding tissues on its electric field. (Figure 1) At a distance r, far from the heart, the heart's electric field falls off as 1/r. falls off as 1/r?. falls off as 1/r3. falls off as 1/r*. Submit Request Answer

Part A The human heart consists largely of elongated muscle cells, some 100 µm long and 15 um in diameter. In its resting state, a cell contains two concentric layers of charge, which confine the electric field to the cell membrane, as in the first figure. When the heart contracts, a wave of depolarization sweeps through, depleting charge and giving each cell a dipole moment, as in the second figure. As a result, the entire organ acts like an electric dipole, producing an external field, which is indirectly detected by electrocardiography. Although the direction of the heart's dipole moment varies, the third figure is typical. In answering the questions that follow, consider the heart in isolation-don't concern yourself with the effect of surrounding tissues on its electric field. (Figure 1) At a distance r, far from the heart, the heart's electric field falls off as 1/r. falls off as 1/r?. falls off as 1/r3. falls off as 1/r*. Submit Request Answer

Calculus: Early Transcendentals
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Part A The human heart consists largely of elongated muscle cells, some 100 µm long and 15 um in diameter. In its resting state, a cell contains two concentric layers of charge, which confine the electric field to the cell membrane, as in the first figure. When the heart contracts, a wave of depolarization sweeps through, depleting charge and giving each cell a dipole moment, as in the second figure. As a result, the entire organ acts like an electric dipole, producing an external field, which is indirectly detected by electrocardiography. Although the direction of the heart's dipole moment varies, the third figure is typical. In answering the questions that follow, consider the heart in isolation-don't concern yourself with the effect of surrounding tissues on its electric field. (Figure 1) At a distance r, far from the heart, the heart's electric field falls off as 1/r. falls off as 1/r2. falls off as 1/r3. falls off as 1/r*. Submit Request Answer Provide Feedback igure 1 of 1 (a) ++ (b) ++++++ (c)
Transcribed Image Text:Part A The human heart consists largely of elongated muscle cells, some 100 µm long and 15 um in diameter. In its resting state, a cell contains two concentric layers of charge, which confine the electric field to the cell membrane, as in the first figure. When the heart contracts, a wave of depolarization sweeps through, depleting charge and giving each cell a dipole moment, as in the second figure. As a result, the entire organ acts like an electric dipole, producing an external field, which is indirectly detected by electrocardiography. Although the direction of the heart's dipole moment varies, the third figure is typical. In answering the questions that follow, consider the heart in isolation-don't concern yourself with the effect of surrounding tissues on its electric field. (Figure 1) At a distance r, far from the heart, the heart's electric field falls off as 1/r. falls off as 1/r2. falls off as 1/r3. falls off as 1/r*. Submit Request Answer Provide Feedback igure 1 of 1 (a) ++ (b) ++++++ (c)
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