Question

The diagram shows three equally spaced wires that are perpendicular to the page. The currents are all equal, two being out of the page and one being into the page. Rank the wires according to the magnitudes of the magnetic forces on them, greatest first. 2 3 Select one: a. 2>1=3 b. 1=3> 2 c. 3 > 2 > 1 O d. 1 > 2> 3 O d e. 1 = 2 =3

Answer 1

Ans() 53.70MJ. B, = field due to 1 2 noo 4 3 son 1 pad *Bi ↑ BI nied (1) Vbาท B3 Loz at position 2, B, and Bg cancel each other So, Bnet at 2 is zero- IBneel2=0.

Net (i) - We know that (1,= 12 = 13 = ") field at 1 B2-B31 B₂ Mo B₂ - Moi ard 2+1(2d) ( 1 B2-Bado en el Net field at eiii) - LB - B2 net field at ein = net field at cilina Moi Moi Mo L ard 47d und answer bo 1=3> 2.

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