A certain cable has an insulation of relative permittivity 4. If the insulation is replaced by one of relative permittivity 2, the capacitance of the cable will become

Nisha Gupta • 2.32K Points
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Q. A certain cable has an insulation of relative permittivity 4. If the insulation is replaced by one of relative permittivity 2, the capacitance of the cable will become

(A) one half

(B) double

(D) none of the above

Correct : Option (A)

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