A resistor is formed by the conductive liquid between two rectangular metal plates of width W=10cm and length L=20cm. The plates are not parallel: the separation distance is d1=1mm at one end and d2=3mm at the other end. Current flows through the liquid from one plate to the other (perpendicular the surface L×W). Find the resistance if the liquid resistivity is ρ=5.0Ω⋅m. (Assume current flows in circular arcs or approximate as straight lines perpendicular L).