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The Capacitance Per Unit Length of a Very Long Coaxial

Question 15

Multiple Choice

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 = 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 = 1/4πε<sub>0</sub> = A) 3.0 mm B) 2.0 mm C) 4.0 mm D) 1.0 mm E) 0.50 mm


A) 3.0 mm
B) 2.0 mm
C) 4.0 mm
D) 1.0 mm
E) 0.50 mm

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