Forty electric bulbs are connected in series across a supply. After one bulb is fused, the remaining 39 are connected again in series across the same supply. The illumination will be |
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a) |
More with 40 bulbs than with 39 |
b) |
More with 39 bulbs than with 40 |

c) |
Equal in both the cases |
d) |
In the ratio of |

Forty electric bulbs are connected in series across a supply. After one bulb is fused, the remaining 39 are connected again in series across the same supply. The illumination will be |
|||

a) |
More with 40 bulbs than with 39 |
b) |
More with 39 bulbs than with 40 |

c) |
Equal in both the cases |
d) |
In the ratio of |

1 Answer

127 votes

When 1 bulb fuses, the total resistance of the circuit decreases hence the current increases. Since therefore illumination increases |

127 votes

127