Question

a chemical heater is 220v of supply and takes a current of 5a what is the cost of using heater for 50 h when 1 kWh is rs 1.50 ??​

Answer 1

using P=VI

p=220×5=1100 w

2-total energy consumed in 50 hrs

E=p×t

(1100/1000)×50=50Kwh

So cost will be

▶55×1.50

=82.50