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What is the velocity factor of a coaxial cable having an insulator with dielectric constant 2.1?(a) 0.69(b) 0.54(c) 0.32(d) 0.45 |
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Answer» Correct option is (a) 0.69 The explanation: The velocity factor in a line can be computed with the expression Where ε is the dielectric constant of the insulating material. |
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