Question

Question below:

Answer 1

I wish I can help but my gosh ..

Answer 2

Oh that's Okay :) Thanks for trying!

Answer 3

Field on the dipole's axis is \(\dfrac {\mu_0}{4\pi}\dfrac{2M}{d^3}\)

Field in the dipole's equator is \(\dfrac {\mu_0}{4\pi}\dfrac{M}{d^3}\)

since those fields are at right angles, d = 1 m and \(\mu_o=4\pi 10^{-7}\)

then you will find answer is D).

Answer 4

I do not see how they are at right angles?



Dotted lines represent the field isn't it. So they become antiparallel?

Answer 5

No, they don't. Have a look at this sketch: