NCERT Class XII Chapter
Magnetism and Matter
Questions With Solutions
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Question : 14
Total: 25
If the bar magnet in the previous problem is turned around by 180°, where will the new null points be located?
Solution:
When the bar magnet is turned through 180°, neutral points would lie on equatorial line, so that
B 2
B H
In the previous question,
B 1
B H
From (i) and (ii)
∴d 2 3
d 2
In the previous question,
From (i) and (ii)
∴
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