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[" An electric bulls marked "40w-200v" is used in a circuit of supply voltage "100v],[" now its power is "]

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An electric bulb marked 40W-200 V is used in a circuit of supply voltage 100V. Now its power is

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(a) A 220V-100W bulb is connected to 110V source. Calculate the power consumed by the blub. (b) Calculate the following for a 100W - 200V bulb (i) Resistance of the filament of bulb (ii) Current through bulb when it is connected to 200V line (iii) Power consumed when bulb is connected to 100V line (c) An electric bulb rated 100W -200V is used in a circuit having 400V supply. what resistance R must be put in series with bulb so that bulb delivers 100W ? (d) Repeat the previous problem, if bulb delivers 25W . (e) Two bulbs, 50W-220V, 100W-200V are connected in series across a 220V supply. find the power consumed by each bulb.

An electric bulb marked 25 W and 100 V is connected across 50 V supply . Now its power is .