Question

An electric heater is rated at 2kwh calculate the cost of using it for 2 hours daily for the month of September If each unit cost 4 rupess

Answer 1

E = 2KwH

Usage = 2* 30 = 60hr

2 KW * 60Hr = 120KwH

1 unit = 1Kwh

Cost of 1 unit = 4 Rs

So cost of 120 units = 120 * 4

= 480 Rs


Thanks