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[" (4) An electric bulb rated for "500" ...

[" (4) An electric bulb rated for "500" watts at "100" volts is used in a circuit "],[" having "200" volt supply.The resistance "R" that must be put in series with the "],[" bulb so that the bulb draws "500" watts is "],[" O ohms "],[" 0ohms "],[" 00ohms "],[" 020ohms "]

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