Electrical energy is a form of energy resulting from the movement of charged particles (electrons). It powers electronic devices and is generated from various sources, including fossil fuels, renewables, and nuclear.
It would cost a man Rs. 3.50 to buy 1.0 kW h of electrical energy from the Main Electricity Board. His generator has a maximum power of 2.0 kW. The generator produces energy at this maximum power for 3 hours. Calculate how much it would cost to buy the same amount of energy from the Main Electricity Board.
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The cost of electrical energy is typically given in terms of the cost per unit of energy, which is measured in kilowatt-hours (kWh). In this case, the cost is Rs. 3.50 per 1.0 kWh.
The generator produces energy at its maximum power of 2.0 kW for 3 hours. To find the total energy produced by the generator, you can use the formula:
Energy (in kWh) = Power (in kW) x Time (in hours)
So, for the generator:
Energy (in kWh) = 2.0kW × 3hours
Energy (in kWh) =6.0kWh
Now, to find the cost of this energy from the Main Electricity Board, you can use the given cost per kWh:
Cost = Energy (in kWh) × Cost per kWh
Cost = 6.0kWh×Rs.3.50/kWh
Cost = Rs.21.00
Therefore, it would cost Rs. 21.00 to buy the same amount of energy from the Main Electricity Board that the generator produces at its maximum power for 3 hours.