PhysicsMedium251×since 2002Q7343Two identical metal wires of thermal conductivities K₁ and K₂ respectively are connected in series. The effective thermal conductivity of the combination is :A2K1K2K1+K2{{2{K_1}{K_2}} \over {{K_1} + {K_2}}}K1+K22K1K2BK1+K2K1K2{{{K_1} + {K_2}} \over {{K_1}{K_2}}}K1K2K1+K2CK1+K22K1K2{{{K_1} + {K_2}} \over {2{K_1}{K_2}}}2K1K2K1+K2DK1K2K1+K2{{{K_1}{K_2}} \over {{K_1} + {K_2}}}K1+K2K1K2Check answerSkip