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Electrical Cables

Electrical Cables
In case of three core flexible cable the color of the neutral is

Red
Black
Blue
Brown

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Electrical Cables
In single core cables armouring is not done to

Avoid excessive sheath losses
Make it flexible
Either of the listed here
None of the listed here

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Electrical Cables
The insulation of the cable decreases with

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

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Electrical Cables
The current carrying capacity of cables in D.C. is more than that in A.C. mainly due to

Smaller dielectric loss
None of the listed here
Nonexistence of any stability limit
Absence of harmonics

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Electrical Cables
The advantage of cables over overhead transmission lines is

Can be used in congested areas
Low cost
Easy maintenance
Can be used in high voltage circuits

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Electrical Cables
In cables the charging current

Leads the voltage by 180°
Leads the voltage by 90°
Lags the voltage by 180°
Lags the voltage by 90°

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