Two identical conductors made of metals of coefficients of thermal conductivities `K_(1), K_(2)` such that `(K_(1)ltK_(2))` are given
Statement (A) : Under series connection the effective coefficient of thermal conductivity `(K_(S))` is such that `K_(1)ltK_(S)ltK_(2)`
Statement (B) : Under parallel connection the effective coefficient of thermal conductivity `(K_(P))` is such that `K_(P)=(K_(1)+K_(2))/2`

Options

A. A is true B is false
B. A is false B is true
C. A, B both are true
D. A, B both are false

Answer

C