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10th Class Science Electricity and Circuits Question Bank Electricity

  • question_answer
    What is the potential difference across bulb X in the circuit shown below?

    A) 1.5 V                                    

    B) 3.0 V                    

    C) 4.5 V                                    

    D) 6.0 V

    Correct Answer: A

    Solution :

    The potential difference of the bulb is 1.5 V (as the e.m.f. of a dry cell is 1.5V) since a closed switch is a conductor and has zero voltage.


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