How do I calculate lenght in magnetic circuit that includes a rigid transversely magnetized permanen

thexy

Joined Dec 13, 2015
130

I need to calculate l_M. Can I use Ampere's law?

$$H_Ml_M+H_Ll_L=0$$

and than Gauss's law $$B_LA_L=B_ML_M$$

and $$B_M=B_R+\mu H_M$$

Can I do it like this? If someone would like to finish it I would be really thankful.