Define the SI unit of Power . An electric Bulb of 100W is used for 2hrs per day and Five 60W tubes are lighted for 4hrs per day in David's House.Calculate the energy consumed in the month of January and also fine the cost of electricity consume @ Rs 3 per KWH
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⏩ S.I. unit of power is Watt (W) .
It is defined as a derived unit of 1 joule per second.
⏩ Total energy consumption = power × no. of appliances × time / 100
=> 100 × 2 × 5 × 60 × 4 / 100
=> 2 × 5 × 60 × 4
=> 2400 Wh
=> 240 kWh
⏩ Cost of electricity per kWh = Rs. 3
Cost of electricity 240 kWh = 240 × 31 × 3
=> Rs. 22320
⏩ S.I. unit of power is Watt (W) .
It is defined as a derived unit of 1 joule per second.
⏩ Total energy consumption = power × no. of appliances × time / 100
=> 100 × 2 × 5 × 60 × 4 / 100
=> 2 × 5 × 60 × 4
=> 2400 Wh
=> 240 kWh
⏩ Cost of electricity per kWh = Rs. 3
Cost of electricity 240 kWh = 240 × 31 × 3
=> Rs. 22320
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