A house uses 7 tubelight of 50 W each for 5 hours a day. The electrical energy consumption for one day is:

50 unit

No worries! We‘ve got your back. Try BYJU‘S free classes today!

3.5 unit

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1.75 unit

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

350 unit

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C 1.75 unit
$1 u n i t = 1 k W h$
$P = \frac{W}{t}$
$7 \times 50 \times 5 = 1.75 u n i t$

Suggest Corrections

Similar questions

Q. A house has four tubelights, three fans and a television. Each tubelight draws

40 W

. The fan draws

80 W

and the television draws

100 W

. On an average, all the tubelights are kept on for

5

hours, all fans for

12

hours and the television for

6

hours everyday. Find the cost of electric energy used in

30

days at the rate of

R s . 3.00

per KWH

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.

There are 5 rooms in a house.Each room has 100W bulb and a 40W tubelight.If every day the bulb is use for 1hour and tubelight is use for 5hours in each room,then what will the cost of total electric energy consumed in 30days when one unit costs Rs.2.5

Q. In a house,