Electrical Cables
The insulation of the cable decreases with

The increase in length of the insulation
None of the listed here
Both of the listed here
The decrease in the length of the insulation

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Electrical Cables
Capacitance grading of cable implies

Grading according to capacitance of cables per km length
Cables using single dielectric in different concentrations
Use of dielectrics of different permeabilities
Capacitance required to be introduced at different lengths to counter the effect of inductance

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