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  1. Brightness of bulb depends on voltage or current?

    2. A.

     Current
    B.

     Voltage
    C.

     Both A & B
    D.

     None

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    Answer : Option C

    Explanation :

    Brightness of bulb depends on both voltage and current. The brightness depends on power.
    Since we know that Power (P) = Voltage x Current = V I
    So whether you increase the current or the voltage the brightness will increase.

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