Calculate the thermal resistance of an aluminium rod of length `20cm` and area of cross-section `4cm^(2)`. The thermal conductivity of aluminium is `210Js^(-1)m^(-1)K^(-1)`.

Calculate the resistance of an aluminium wire of length 50 cm and cross sectional area 2.0mm^(2) . The resistivity of aluminium is (rho)=2.6xx10^(-8)(Omega)m.

Calculate the resistance of an aluminium wire of length 50 cmand cross sectional area 2.0mm^(2) . The resistivity of aluminium is (rho)=2.6xx10^(-8)(Omega)m.

Calculate the resistance of an aluminium wire of length 50 cmand cross sectional area 2.0mm^(2) . The resistivity of aluminium is (rho)=2.6xx10^(-8)(Omega)m.

Find the thermal resistance of an aluminium rod of length 20cm and area of cross section 1cm^(2) . The heat current is along the length of the rod. Thermal conductivity of aluminium =200Wm^(-1)K^(-1) .

Find the thermal resistance of an aluminium rod of length 20cm and area of cross section 1cm^(2) . The heat current is along the length of the rod. Thermal conductivity of aluminium =200Wm^(-1)K^(-1) .

Find the thermal resistance of an aluminium rod of length 20cm and area of cross section 1cm^(2) . The heat current is along the length of the rod. Thermal conductivity of aluminium =200Wm^(-1)K^(-1) .

Find the thermal resistance of an aluminium rod of length 0.20 m and area of cross section 1xx10^(-4)m^(2) . The heat current is along the length of the rod. [Thermal conductivity of aluminium =200Wm^(-1)K^(-1) ]

Calculate the conductivity of a wire of length 2 m, area of cross-sectionl 2 cm^(2) and resistance 10^(-4) Omega .

Thermal resistance R of a conductor of length l cross section A and conuctivity K is

The thermal conductivity of aluminium is 0.5 cal s^-1cm^-1 "@_C^-1 .Express it in S.I. system.