1. Tardigrade
  2. Question
  3. Physics
  4. 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:

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. 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:Physics Question Image

Magnetism and Matter

Solution:

In magnetic dipole
Force $\propto \frac{1}{r^4}$
In the given question,
Force $\propto x^{-n}$
Hence , n = 4