an office uses 6 bulbs of 25 watt each and 2 fans of 100 watt each for 10 hours daily the office is open in all days If the cost of electricity is rs 5 per unit what is the monthly expenditure of electricity
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Explanation:
power used by one bulb = 25 watt
power used by 6 bulb = 6 × 25 = 150 watt
power used by one fan = 100 watt
power used by one fan = 2 × 100 = 200 watt
Total power used by appliances
= 150 + 200 = 350 watt
[ 1 kw(kilo watt) = 1000watt ]
= 350/1000
= 0.35kw
Total power used by appliances for 10h in a day
= 0.35 × 10
= 3.5 kwh =3.5 units
Therefore,
monthly expenditure of electricity
= 5 × 3.5 × 30
= 525 rupees
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0
Answer:
Electrical energy =power ×time
Explanation:
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