The space between two metallic coaxial cylinders of length L and radii a and b is completely

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The space between two metallic coaxial cylinders of length L and radii a and b is completely filled with a material having a resistivity ρ.

(a) What is the resistance between the two cylinders?

(b) Find the current between the two cylinders if ρ = 30 Ω • m, a = 1.5 cm, b = 2.5 cm, L = 50 cm, and a potential difference of 10 V is maintained between the two cylinders.

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