Link1)
https://media.cheggcdn.com/media%2Fe44%2Fe4486aa4-e3d1-42fb-b9e9-9be626448630%2FphpdVSSNJ.png

https://media.cheggcdn.com/media%2Ff45%2Ff454eae5-1a1a-4282-bdc0-f6bd7d672828%2FphpRMR18V.png

https://media.cheggcdn.com/media%2F2e1%2F2e1fcbc7-b631-4121-a9fc-67a86b1cc40b%2FphpWMVSWI.png

https://media.cheggcdn.com/media%2F6c0%2F6c020ffd-ef8a-4382-93b0-e91f6744a609%2FphpENz1nV.png

Link2)
https://d2vlcm61l7u1fs.cloudfront.net/media%2F089%2F0892ae2d-e5d1-4a0b-8255-7697b3bb4a6b%2Fphpn2T2Tt.png

https://d2vlcm61l7u1fs.cloudfront.net/media%2Fad6%2Fad65e898-cfe4-471f-9d83-0fb0d550e6ce%2FphpxlXpUx.png

Rather go and see: https://www.teachengineering.org/lessons/view/van_mri_lesson_5

Link3)
https://media.cheggcdn.com/media%2Fe3a%2Fe3ae64ed-cb2d-4761-829a-1346707f82d0%2Fphp6g2FU4.png

https://media.cheggcdn.com/media%2Fdd0%2Fdd036827-8408-40e0-a53b-44e945898253%2FphpcI29Zi.png

https://media.cheggcdn.com/media%2F586%2F586affcf-c8c7-4b4f-8aed-398ba2d203f4%2FphpAk86c0.png

Link4)
The upward force on a 1 meter length of the wire will be

BIL = (5.0*10^-5)(A)(1.0)=(5.0*10^-5)A.

The downward force due to gravity will be

mg = (0.001)(9.81) = 0.00981 N.

These forces will be equal when the wire "floats" so:

A = 0.00981/0.00005 = 196.2 Amps