A water pump draws about 4.4 A when connected to 240 V.What is the cost (with electrical energy at 9 cents per kWh)of running the pump for 10 h?
A) 82 cents
B) 8.0 cents
C) 95 cents
D) 15 cents

Question

Quizplus · Accepted Answer

To calculate the cost of running the water pump for 10 hours, we need to first determine the total energy consumption in kWh.

Power (P) = Voltage (V) x Current (I) 
P = 240 V x 4.4 A 
P = 1056 W

Energy (E) = Power (P) x Time (t) 
E = 1056 W x 10 h 
E = 10.56 kWh

Now we can calculate the cost:

Cost = Energy (E) x Cost per kWh 
Cost = 10.56 kWh x 9 cents/kWh 
Cost = 95.04 cents

Therefore, the correct choice is C.

A Water Pump Draws About 4