BIO The average bulk resistivity of the human body (apart from surface resistance of the skin) is about 5.0 Ω · m. The conducting path between the hands can be represented approximately as a cylinder 1.6 m long and 0.10 m in diameter. The skin resistance can be made negligible by soaking the hands in salt water, (a) What is the resistance between the hands if the skin resistance is negligible? (b) What potential difference between the hands is needed for a lethal shock current of 100 mA? (Note that your result show's that small potential differences produce dangerous currents when the skin is damp.) (c) With the current in part (b), what power is dissipated in the body?
BIO The average bulk resistivity of the human body (apart from surface resistance of the skin) is about 5.0 Ω · m. The conducting path between the hands can be represented approximately as a cylinder 1.6 m long and 0.10 m in diameter. The skin resistance can be made negligible by soaking the hands in salt water, (a) What is the resistance between the hands if the skin resistance is negligible? (b) What potential difference between the hands is needed for a lethal shock current of 100 mA? (Note that your result show's that small potential differences produce dangerous currents when the skin is damp.) (c) With the current in part (b), what power is dissipated in the body?
BIO The average bulk resistivity of the human body (apart from surface resistance of the skin) is about 5.0 Ω · m. The conducting path between the hands can be represented approximately as a cylinder 1.6 m long and 0.10 m in diameter. The skin resistance can be made negligible by soaking the hands in salt water, (a) What is the resistance between the hands if the skin resistance is negligible? (b) What potential difference between the hands is needed for a lethal shock current of 100 mA? (Note that your result show's that small potential differences produce dangerous currents when the skin is damp.) (c) With the current in part (b), what power is dissipated in the body?
Study of body parts and their functions. In this combined field of study, anatomy refers to studying the body structure of organisms, whereas physiology refers to their function.
Five cylindrical wires are made of the same material. Their lengths and radii are
wire 1: length l, radius r
wire 2: length l/4, radius r/2
wire 3: length l/2, radius r/2
wire 4: length l, radius r/2
wire 5: length 5l, radius 2r
Rank the wires according to their resistances, least to greatest.
Group of answer choices
1, 3, 4, 2, 5
5, 4, 3, 2, 1
1, 2, 4, 3, 5
1, 2, 3, 4, 5
1 and 2 tie, then 5, 3, 4
Consider two coaxial conducting spheres of radii a and b = 2a. Filled with a conductive material with resistivity p = p0 (1 + r / a) between the radii (region a≤r≤b). Calculate the resistance between the spheres.
Consider a cylindrical ohmic wire with the following dimensions: length = 10.0 m, radius = 0.05 m. When the ends of the wire were connected to a 2.0 V voltage source, a 1.0 A current through the wire was measured. Determine the resistivity of the wire.
Choices: 3.93 x10^-4 Ω-m, 1.57 x 10^-3 Ω-m, 3.14 x 10^-2 Ω-m, 3.92 x 10^-2 Ω-m, 1.57 x 10^-1 Ω-m
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DC Series circuits explained - The basics working principle; Author: The Engineering Mindset;https://www.youtube.com/watch?v=VV6tZ3Aqfuc;License: Standard YouTube License, CC-BY