Question

An electric heater rated 1000W operates 6h/day.Find the cost of energy to operate it for 30 days at Rs.5 per unit.

Answer 1

Here's the answer, glad to be of help.

Answer 2

E= P×t.. ...formula
It is given that P =1000W and
t= 6h/d ×30 days = 180 hours

So, E= 1000×180= 180000W= 180 kWh
= 180 units


So total cost for operating = 180×₹5=₹900


Thus total cost of operating is ₹ 900.



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