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Optical fiber is an insulator.(a) True(b) FalseThis question was addressed to me in unit test.My question is from Fly-by-Light Flight Control in section Fly by Wire Flight Control of Avionics

Answer»

The CORRECT ANSWER is (a) True

For explanation I would say: Fiber optic cables carries a digitally modulated light intensity signal. IT has no necessity to be made of an conductor as the only CONDITION for light to pass through is an opaque medium. Optical fibers are always made with an insulating material as they OFFER less EMI.



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