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How is the electricity bill of a household calculated? if a 100 W electric bulb is lighted for 20 hours how much electrical energy will be consumed ? Also, find the cost, if 1 unit cost ₹4 (Please Answer Correctly Its Very Important)​

Answer»

/class-10Given :-☄ Power of bulb, P = 100W = 0.1 kW☄ Cost of 1 Unit (kWh) = ₹ 4☄ Time, t = 20hTo find :-the electric ENERGY CONSUMED and the costSolution :-The ELECTRICAL energy consumed by an electrical appliance is given by the product of its power RATING and the time for which it is used.➠ Electrical energy, E = P × t➠ E = 0.1 × 20 kWh➠ E = 2 kWhso, the electrical energy consumed is 2kWh.Cost of 1 unit = ₹4Cost of 2 unit = ₹(2 × 4) = ₹8the cost of tht electrical energy consumed is 8Rs.#sanvi....



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