wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A house hold use one heater of rated power 1000w for 1 hour a day, five bulbs of power 40w used for 5 hours a day and the fan of rated power 100w used for 10 hours a day. Find the number of units of electirical energy consumed in 10 days.

Open in App
Solution

Electric energy consumed=Power×time

Heater, =1000×1=1000 Wh
Bulb,=5×40×5=1000 Wh
Fan, =100×10=1000 Wh
Total=3000 Wh for one day.

For 10 days=3000×10=30000 Wh

1 unit = 1 kW h = 1000 Wh
1 W h = (1/1000) unit
30000 W h = 30 unit
Electrical energy consumed in 10 days = 30 unit

flag
Suggest Corrections
thumbs-up
4
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Electric Power
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon