Magnetism Question 235
Question: The mid points of two small magnetic dipoles of length d in end-on positions, are separated by a distance x, (x»d). The force between them is proportional to $ {{x}^{-n}} $ where n is:
Options:
A) 1
B) 2
C) 3
D) 4
Show Answer
Answer:
Correct Answer: D
Solution:
[d] In magnetic dipole $ Force\propto \frac{1}{r^{4}} $ In the given question. $ Force\propto {{x}^{-n}} $ Hence, n = 4
BETA
