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7th Class General Knowledge Miscellaneous / विविध Question Bank Science and Technology

  • question_answer
    If same amount of current is passed through each of the following then which one will show the strongest magnetic strength?

    A)  Straight conducting wire

    B)  Solenoid wound on an iron core

    C)  Coil of wire

    D)  Solenoid wound on a wooden core

    Correct Answer: B

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