Question

An electric heater rated 600w operates 6hour/day.find the cost to operates it far 30day at ₹3.00 per unit

Answer 1

Answer:

Total cost = Rs. 324

Explanation:

Given ,

Power , p = 600 watts (W)

= [tex]\frac{600}{1000}[/tex] kilowatts

= 0.6 kilowatts (kW)

Time , t = 6 × 30 [ The appliance runs for 30 days , 6 hr / day ]

= 180 hours

We know that ,

Electrical energy consumed = Power × Time

Therefore ,

Energy = 0.6 × 180

= 108 kilowatt hour ( kWh )

Also , cost of 1kWh energy consumed = Rs 3

Therefore ,

Cost of 108 kWh energy consumed = 3 × 108

= Rs 324