In the schematic flownet shown in the given figure the hydraulic potential at point A is-A-5 m of waterB-12 m of waterC-15 m of waterD-25 m of water-B-12 m of water

B 12 m of water The number of equipotential drops are 9. So drop in head pr drop=18/9=2m of water. At point A, Ha=18 3 * 2 = 12.