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  1. Two electric bulbs marked 25W – 220V and 100W – 220V are connected in series to a 440Vsupply. Which of the bulbs will fuse?

    2. A.

     25 W
    B.

     Both
    C.

     100 W
    D.

     Neither

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    Answer : Option A

    Explanation :

    When connected in series, the voltages divide in them in the ratio of their resistances. The voltage of 440 V devides in such a way that voltage across 25 w bulb will be more than 220 V. Hence 25 w bulb will fuse.

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