calculate the unit of electricity consumed in the month of November for the following details. One 60 watt bulb used for 5 hour daily. One 100 watt bulb used for 3 hour daily. 1 kw electric heater used for 2 hours easily. Also calculate the monthly bill at the rate of rupees 2.50 per unit
Answers
Answer:
Unit of electricity used in month = 2.6 unit
Monthly bill = 195rs
Explanation:
Given, Bulb 1 = 60watt
Bulb 2 = 100watt
electric heater = 1kw = 1000watt ( 1Kw = 1000watt)
1 Month = 30days
We know,
Energy = Power × Time
Energy Bulb 1 = 60 × 5
= 300wh per day
Energy Bulb 2 = 100 × 3
= 300wh per day
Energy electric heater = 1000 × 2
= 2000Wh per day
Total energy = energy Bulb 1 + Energy Bulb 2 + energy electric heater
Total energy = 300 + 300 + 2000
= 2600wh per day
= 2.6 kw per day [ 1kw = 1000watt]
Unit of electricity used in month = 2.6 unit × 30 [ 1 unit = 1kw]
Unit of electricity used in month = 78 unit
Monthly bill = total energy × price × 30
= 2.6 × 2.5 × 30 [ 1 unit = 1kw]
= 195rs per month
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