7th Class Science Electric Current and Its Effects Question Bank Electric Current and Its Effects

  • question_answer
    Which of the following actions will decrease the strength of the magnetic field of an electromagnet?

    A) Using fewer loops of wire per meter in the coil

    B) Decreasing the current in the wire

    C) Removing the iron core

    D) All of the above

    Correct Answer: D

    Solution :

    All of the above


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