Explanation Given data: Resistivity of the skin of the palm of the electrical worker ( ρ ) is 1 × 10 6 Ω ⋅ m . Thickness of the palm is 1.5 mm, which is written as 0.0015 m. The thickness considered as length of the palm ( L ) . Formula used: Write the expression for resistance in terms of resistivity and dimensions. R = ρ L A (1) Here, ρ is the resistivity of material, L is the length of the material, and A is the cross-section area of the material. Explanation: Consider the normal cross-section area of the palm of electrical worker (human being) as 10 cm × 12 cm . The cross-section area of palm is estimated as follows. A = 10 cm × 12 cm = 120 cm 2 = 120 × 10 − 4 m 2 Substitute ( 1 × 10 6 ) Ω ⋅ m for ρ , 0

Student Workbook for College Physics: A Strategic Approach Volume 1 (Chs. 1-16)

3rd Edition

ISBN: 9780321908865

Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field

Publisher: PEARSON

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Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends o…

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Chapter 22, Problem 27P

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Chapter 22, Problem 26P

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Chapter 22 Solutions

Student Workbook for College Physics: A Strategic Approach Volume 1 (Chs. 1-16)

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The approximate resistance of the skin of the palm.

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Chapter 22 Solutions