8) A 3 phase 208 V, 60 HZ, induction motor takes a current of
10A at 0.8 lagging PF and drives a water pump at 3500 rpm. How much
torque is the pump receiving if the motor efficiency is 90 %? How
much water can the pump raise to an elevation of 10 m every hour if
the pump efficiency is 80%?
How much we have to pay in electricity cost for 12 hours of
continuous operation if the tariff is $0.10/ Kwhr