An infinite shoot of current, perpendicular to the , axis is located at x - 0 .

Question

An infinite shoot of current, perpendicular to the , axis is located at x - 0 . The linear current denstly flows In the -z direction. By inspection we expect the magnetic field dilution Bx, on the positive x (right hand) side of the sheet to be In the y direction, while tho magnetic flold on the negative x (left hand) side of the sheet to be in the + y direction; What is the "magneto motive force", defined by M = B . ds? M = 2 w B None of these M = (l + w) B M = 2 l B M = lB M = 2 (l_w) B We choose the Amperian loop as the dashed line below with sides of length £ and w. What is the current encireled by the amperian loop? I enc = 2 (l - w ) -2 I enc = l -z I ence = w -z I enc = ( l + w) -z Ienc = 2 w -z I enc = 2 l -z Find the magnitude ||B|| of the magnetic field if the length is 0. 3 m, the width is 0. 074 m, the current per unit length is 3. 16 A / m. and the permeability of free space is 1. 25664 x 10 -6 T / . M / A.

Explanation / Answer

A.option 4

B. option 5.

c. B = 0I/2rl is the formula

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