A submarine cable consisting of a wire 3 mm in diameter and insulated with 3 mm of guttapercha (permittivity=4.26) is placed in water. Calculate the c
A submarine cable consisting of a wire 3 mm in diameter and insulated with 3 mm of guttapercha (permittivity=4.26) is placed in water. Calculate the capacitance of 1 km of the cable in micro farads.
[Hint: Consider the submarine cable as a cylindral capacitor of inner radius 1.55 mm and outer radius of 4.5 mm.]
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