A small bar magnet is placed with its north pole facing magnetic north pole.The neutral points are located at distance r from its centre. If magnet isrotated by 1800, neutral point shall be obtained at distance:1.  2r                                         2.  2r3.  2-13r                                  4.  r22

Concept Videos :-

#10 | Earth's Magnetism
#11 | Apparent & True Dip
#12 | Neutral points
#13 | Comparison of Magnetic Field of Earth at Two Points
#14 | Variation of Earth's Magnetic Field

Concept Questions :-

Earth's magnetism
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