Question

44.An electric appliance is rated 2000 watt. Fnd the cost of using the appliance for 1.5 hours at Rs 5 per unit.​

Answer 1

Answer:

Rs. 15

Explanation:

To find total cost first we have to find the total use of the appliance.

So, we know, Total energy = power × time.

= 2000× 1.5 watt hour

= 3000 watt hour

but now we have to convert it into kW h

3000 W h = 3kW h

So total cost = ₹ 3×5 = ₹ 15

HOPE IT WILL HELP YOU.