A copper wire of radius 0.5 mm is insulated with a sheathing of thickness 1 mm having a thermo- conductivity of 05 W/m.K. The outside surface convective heat transfer coefficient is 10 W/m.K. If the thickness of insulation sheathing is raised by 10 mm, then the electrical current carrying capacity of the wire will:

Vary depending upon the electric conductivity of the wire.

A copper wire of radius 0.5 mm is insulated with a sheathing of thickn

1.	A copper wire of radius 0.5 mm is insulated with a sheathing of thickness 1 mm having a thermo- conductivity of 05 W/m.K. The outside surface convective heat transfer coefficient is 10 W/m.K. If the thickness of insulation sheathing is raised by 10 mm, then the electrical current carrying capacity of the wire will:
A.	Increase
B.	Decrease
C.	Remain the same
D.	Vary depending upon the electric conductivity of the wire.
Answer» D. Vary depending upon the electric conductivity of the wire.

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