Physics, asked by AkashMandal, 1 year ago

in a house 3 bulbs of 50w each are used for 4hrs a day. and 3 fans of 60w are used 10hrs a day . calculate the unit of electricity consumed in a month of 30 days?

Answers

Answered by sabarinathcs
1
Power consumed by 3 bulbs = 3 x 50w = 150 w = 0.150 x 4 = 0.6 Kwh
power consumed by 3 fans = 3 x 60 = 180 w = 0.180 x 4 = 0.72 Kwh
adding both we get = 1.32 Kwh
in 30 days the power = 1.32 x 30 = 39.6 Kwh or units 

In 30 days the unit of electricity consumed = 40 (approx)

sabarinathcs: hope this help
Answered by asuryavarsha2016
1

Solution:

3 bulbs of 100 w for 5 hours

3 X 300 = 1500 W = 3/2 KWH

2 X 50 X 10 = 1000 W = 1 kWh

100 k X 1 hr = 100 kwh

then let's calculate for 31 days,

3/2 X 31 = 93/2

1 X 31 = 31

100 X 31 = 3100

now add these all

93/2 + 62/2 + 6200/2 = 6355/2

=2177.5

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