The resistance of the filament of an electric bulb changes with temperature. If an electric bulb rated 220 volt and 100 watt is connected to sources, then the actual power would be |
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a) |
b) |
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c) |
Between and |
d) |
Between and |

The resistance of the filament of an electric bulb changes with temperature. If an electric bulb rated 220 volt and 100 watt is connected to sources, then the actual power would be |
|||

a) |
b) |
||

c) |
Between and |
d) |
Between and |

1 Answer

127 votes

Here, (because voltage decreases from It means heat produced decreases) So Also , Since [we expect] So Hence the actual power would be between and |

127 votes

127