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Why there is dim in bulb …

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Why there is dim in bulb when we switch on heater in kitchen

    • Posted by Shivam Pandit 5 years, 8 months ago

    CBSE > Class 12 > Physics
    • 2 answers

    Shivam Pandit 7 years, 6 months ago

    The reason for this is that when we swich on heater then current coming to our house increase ,therefore V =e.mf_ir Where,v=potential difference, i=current &r=i nternal resistance According to above relation ,, When i (current )increase ,v (potential difference decreases. Hence, thete is dim in brightness of bulb due to decrease in potential difference.

    1Thank You

    Jin Kazama 7 years, 6 months ago

    Because heator is more power consumer than bulbb so i think suden opening of heator may cause slight change in brtitnessss

    0Thank You

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