A direct current is sent through a helical spring. The spring

Options :
  1. tends to get shorter
  2. tends to get longer
  3. tends to rotate about the axis
  4. tends to move northward


Answer and Explanation :-

Answer: Option 1

Explanation:

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A rock pile ceases to be a rock pile the moment a single man contemplates it, bearing within him the image of a cathedral.
-Antoine de Saint-Exupéry The Little Prince