8. A factory has a maximum demand of 500 kW, the load factor being 60% during working hours. The following two tariffs are available : (i) Rs 8 per kw of maximum demand plus 3 paise per kWh. (ii) a flat rate of Re 0-1/kWh. Determine the working hours per week above which tariff (i) will be cheaper. [44 hours/week]

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Electrical Power Generation

In an electric power generator, one type of energy is converted into electrical energy. Power-generating systems are simply a combination of potential or stored energy that is converted to provide kinetic energy, which, in turn, generates electrical energy for use in engines, lighting, heating, and other benefits of modern life.