The resistance between the two opposite faces of a cube is $R$. If the area of one side is $A$, the

Question

The resistance between the two opposite faces of a cube is $R$. If the area of one side is $A$, the resistance per unit area is\

Professor PC Thomas Classes · Answer

$R=\frac{ho L}{A}$ To find resistance of unit area put $\mathrm{A}=1, ho$ and L remaining the same. $$ R^{\prime}=\frac{ho L}{A} $$ $\frac{\mathrm{R}^{\prime}}{\mathrm{R}}=\mathrm{A} \quad \mathrm{R}^{\prime}=\mathrm{RA}$\