Answer:
(a) As energy = power x time
= [(60 x 4 + 60 x 3 + 500) x 8] = 7.360 kWh
= 7.360 x 30 =220.8 units
[Number of days in September = 30 days]
(b) Mr. Praveen demonstrated the values to save energy.
(c)
= 1000 W x 3600 s
= 3600000 =3.6 x106)
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