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A room heater is rated 500 W, 220V. (a) ...

A room heater is rated `500 W, 220V`. (a) Find the resistance of its coil. (b) If the supply voltage drops to `200 V`, what will be the power consumed? ( c) If an electric bulb rated `100 W, 220 V` is connected in series with this heater, what will be the power consumed by the heater and by the bulb when the supply is at `220 V`?

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