A long bar magnet is carefully broken into three equal pieces. How many total magnetic poles are present…

A long bar magnet is carefully broken into three equal pieces. How many total magnetic poles are present among all three pieces combined?
  1. 2
  2. 4
  3. 6
  4. 3

Solution

Every broken piece of a magnet forms an independent magnet with two poles (North and South). Thus, 3 pieces will have $3 \times 2 = 6$ poles.

Asked in: Homi Bhabha Practice

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