A220V-100watt bulb is connected to100V source. Calculate the power consumed by the bulb
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Wattage = (absolute voltage)^2/R
R= (absolute voltage)^2/wattage
R = (220)^2/100 = 484.
And power delivered = (given voltage)^2/R = (100)^2/484=20.66
Hence 20.66is the answer
R= (absolute voltage)^2/wattage
R = (220)^2/100 = 484.
And power delivered = (given voltage)^2/R = (100)^2/484=20.66
Hence 20.66is the answer
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