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When does the electric current act as a magnet?

  1. When it is heated
  2. When it is passed from a coiled wire
  3. When it transfer its energy
  4. All of the above

Answer: When it is passed from a coiled wire

Long Answer:

An electric current act as a magnet when it is passed from a coiled wire. In an experiment it was observed that when electricity passed from the wire coiled around a magnetic compass its needle started deflecting.

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