A solid conductor of circular cross section with a radius of 5 mm has a conductivity that
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A solid conductor of circular cross section with a radius of 5 mm has a conductivity that varies with radius. The conductor is 20 m long, and there is a potential difference of 0.1 V dc between its two ends. Within the conductor, H = 105ρ2aϕ A/m.
(a) Find σ as a function of ρ.
(b) What is the resistance between the two ends?
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a Start by finding J from H by taking the curl With H di...View the full answer
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