Two rods having different thermal conductivity but same dimensions are joined in series to allow heat flow from one reservoir to another.

Engineering

Physics

Conduction of Heat

Question

The rate of heat flow through them is different but temperature difference across them is equal

The rate of heat flow through them is same but temperature difference across them is different

The rate of heat flow as well as temperature difference through them is different

The rate of heat flow as well as temperature difference through them is equal

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In series combinaton rate of heat flow will be same
$\frac{ΔQ}{Δt} = \frac{ΔT}{L} KA$

K is different, So DT will be different.