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24. (a) An electrical bulb is rated 220V - 100W. What is the resistance of the bulb?(b) Three such bulbs run simultaneously for 4 hours. What is the energy consumed?(c) Calculate the cost of running these appliances if the per unit cost is Rs 2.80. |
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Answer» 24. (a) An electrical bulb is rated 220V - 100W. What is the resistance of the bulb? (b) Three such bulbs run simultaneously for 4 hours. What is the energy consumed? (c) Calculate the cost of running these appliances if the per unit cost is Rs 2.80. |
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