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NEET-XII-Physics

03: Current Electricity

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  • #1
    The storage battery of a car has an emf of 12 V. If the internal resistance of the battery is 0.4``\Omega``, what is the maximum current that can be drawn from the battery?
    Ans : Emf of the battery, E = 12 V

    Internal resistance of the battery, r = 0.4 ``\Omega``

    Maximum current drawn from the battery = I

    According to Ohm’s law,



    The maximum current drawn from the given battery is 30 A.