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Electrical Cables

Electrical Cables
Copper as conductor for cables is used as

Annealed
Hard drawn
Hardened and tempered
Alloy with chromium

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Electrical Cables
In cables the charging current

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

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Electrical Cables
In the cables, sheaths are used to

Provide enough strength
Provide proper insulation
None of the listed here
Prevent the moisture from entering the cable

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Electrical Cables
In a cable immediately above metallic sheath ________ is provided.

Earthing connection
None of the listed here
Armouring
Bedding

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Electrical Cables
The disadvantage with paper as insulating material is

It is an organic material
It is hygroscopic
It has high capacitance
None of the listed here

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Electrical Cables
A cable carrying alternating current has

Hysteresis losses only
Hysteresis, leakage and copper losses only
Hysteresis and leakage losses only
Hysteresis, leakage, copper and friction losses

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