two coaxial cylinders of radius r and 3r are made of materials of thermal conductivities K1 and K2 .the equivalent thermal conductivity of subs†an ce for axial heat flowy b

two coaxial cylinders of radius r and 3r are made of materials of ther

1.	two coaxial cylinders of radius r and 3r are made of materials of thermal conductivities K1 and K2 .the equivalent thermal conductivity of subs†an ce for axial heat flowy b
Answer» two coaxial cylinders of radius r and 3r are made of materials of thermal conductivities K1 and K2 .the equivalent thermal conductivity of subs†an ce for axial heat flowy b

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two coaxial cylinders of radius r and 3r are made of materials of thermal conductivities K1 and K2 .the equivalent thermal conductivity of subs†an ce for axial heat flowy b

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