Q43
A coaxial cable of uniform cross-section contains an insulating material of dielectric constant. The radius of the central wire is 0.01 m and that of the sheath is 0.02 m. The capacitance per kilometre of a cable is
A.
280.5 nF
B.
28.05 nF
AnswerC.
56.10 nF
D.
2.805 nF
Answer: Option B
Solution
Answer: Option B
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