Electromagnets

Third Quarter Exam 2015 - Science Grade 5 RBEC / Third Quarter Exam 2015 - Science Grade 5 RBEC

Sample Question

Which of the following will increase the strength of an electromagnet?

  • sliding the core partially out of the coils of wire
  • minimizing the amount of current in the wire
  • using a non-metallic core
  • increasing the number of wire loops

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