Question

An electric heater is used in 220 volts and takes current of 5ampere. What is the power?calculate the per hour cost of using the heater if the 1 hour cost is Rs.6.0

Answer 1

Explanation:

p=vi

p=220*5=1100

e=1100/1000*1=1.1kwh

1 hour cost is rupees 6.0=1.1*6.0=Rs6.6