The capacitance per unit length of a very long coaxial cable,made of two concentric cylinders,is 50 pF/m.What is the radius of the outer cylinder if the radius of the inner one is 1.0 mm? (k = 1/4πε₀ = A) 3.0 mm B) 2.0 mm C) 4.0 mm D) 1.0 mm E) 0.50 mm

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The Answer of The capacitance per unit length of a very long coaxial cable,made of two concentric cylinders,is 50 pF/m.What is the radius of the outer cylinder if the radius of the inner one is 1.0 mm? (k = 1/4πε₀ = A) 3.0 mm B) 2.0 mm C) 4.0 mm D) 1.0 mm E) 0.50 mm

The Capacitance Per Unit Length of a Very Long Coaxial