The relatively high resistivity of dry skin, about 1 x 106 Ω • m, can safely limit the flow of current into deeper tissues of the body. Suppose an electrical worker places his palm on an instrument whose metal case is accidentally connected to a high voltage. The skin of the palm is about 1.5 mm thick. Estimate the area of skin on the worker’s palm that would contact a flat panel, then calculate the approximate resistance of the skin of the palm.

Q: 15. A 2.50-m cylindrical rod of diameter 0.500 cm is connected to a power supply that maintains a…

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Q: Resistance depends on the size and shape of a conductor. We expect a long wire to have higher…

A: Ans:- Image-1

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Q: 15. A 2.50-m cylindrical rod of diameter 0.500 cm is connected to a power supply that maintains a…

A:

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A:

Q: Suppose that the resistance between the walls of a biological cell is 5.9 × 109 Ω. (a) What is the…

A: Given that:- Resistance between the walls of a biological cell=5.9×10^9 ohm

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Q: 2.The figure below shows cross sections through three long conductors of the same length and…

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A: Step 1:Step 2:Step 3:Step 4:

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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 on the nature of the material of the conductor and is unaffected by its dimensions.