Magnetism Question 166
Question: The magnetic field due to a short magnet at a point on its axis at distance X cm from the middle point of the magnet is 200 Gauss. The magnetic field at a point on the neutral axis at a distance X cm from the middle of the magnet is
[CPMT 1971, 88; MP PET 1985]
Options:
A) 100 Gauss
B) 400 Gauss
C) 50 Gauss
D) 200 Gauss
Show Answer
Answer:
Correct Answer: A
Solution:
Along the axis of magnet $ B _{a}=\frac{2M}{X^{3}}=200,guass $
$ \Rightarrow B _{a}=\frac{M}{X^{3}}=100,guass $
BETA
