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Power drawn by rated bulbs on another voltage or joined in series

This type of question, asked 3 times: 28 Jul 2022, 4 Apr 2024, 4 Apr 2025. All 3 questions below, oldest first.

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  1. Question 1

    28 Jul 2022

    116
    An electrical bulb rated 220 V,100 W220\text{ }V,100\text{ }W, is connected in series with another bulb rated 220 V220\text{ }V, 60 W60\text{ }W. If the voltage across combination is 220 V220\text{ }V, the power consumed by the 100 W100\text{ }W bulb will be about ____\_\_\_\_ W.

  2. Question 2

    4 Apr 2024

    102
    An electric bulb rated 50 W−200 V50\text{ }W - 200\text{ }V is connected across a 100 V100\text{ }V supply. The power dissipation of the bulb is :

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  3. Question 3

    4 Apr 2025

    77
    There are ' n ' number of identical electric bulbs, each is designed to draw a power p independently from the mains supply. They are now joined in series across the main supply. The total power drawn by the combination is:

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