$(6)$ A nichrome wire $K=17\mathrm{.}5\frac{W}{m}K$ having a resistivity of $110-cm$ is to be used as heating

Element. The wire diameter is $2$ mm and other design features are

Current $=25$ A$,$ Ambient temperature $=293K,$ convection coefficient $=46\mathrm{.}5\frac{W}{m^2}K$

Calculate the heat loss from one metre wire, temperature at the surface, and centre

Temperature of the wire.