A 100 w bulb is lighted for 2 hours and 40 W bulb for 4 hours

Asked by midhunkrishna | 20th Sep, 2008, 11:52: PM

Expert Answer:

first find the total power multiply power consumption with time ,

now use the formula

 watt X hour / 1000 this will give energy in kWh , total power will be the addition of power consumed by each bulb in one day multiply by 30 for whole month and find the answer.

Answered by  | 21st Sep, 2008, 12:33: AM

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