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________?

Academy of PakistanTest & Learning

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Academy of PakistanTest & Learning

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1254Electrical EngineeringMedium

Anone of the above

Bone half

Cfour times

Ddouble

Correct answer

B. one half

Explanation

The correct answer is one half.

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________? - Answer and Explanation | Academy of Pakistan