Points A and B are situated along the extended axis of 2cm long bar magnet at a distance x and 2x respectively. From the pole nearer to the points, the ratio of the magnetic field at A and B will be
see full answer
Your Exam Success, Personally Taken Care Of
1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya
a
4 : 1 exactly
b
4 : 1 approx
c
8 : 1 exactly
d
8 : 1 approx
answer is D.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
For a magnet, B=μ04π.2Mx3 (Nearly)⇒B1B2=x2x12=2x1x3=81 (Approx).
Points A and B are situated along the extended axis of 2cm long bar magnet at a distance x and 2x respectively. From the pole nearer to the points, the ratio of the magnetic field at A and B will be