Two identical metal wires of thermal conductivities K 1 and K 2 respectively are connected in series. The…

1. $\frac{2{ K}_1{ K}_2}{{ K}_1+K_2}$
2. $\frac{K_1+K_2}{2{ K}_1{ K}_2}$
3. $\frac{K_1+K_2}{{ K}_1{ K}_2}$
4. $\frac{K_1{ K}_2}{{ K}_1+K_2}$

Solution

Asked in: JEE Main 2021 (17 Mar Shift 1)

Practice more Thermal Properties of Matter questions on Aicharya