The figure to the right shows a durrent element, I*delta(l), that is part of som

Question

The figure to the right shows a durrent element, I*delta(l), that is part of some larger circuit. This problem asks you to rank the relative magnitudes of the contribution to the magnetic field at three points equidistant to the center of the current. The points 1, 2, and 3 are equidistant for the center of the current element, select the inequality that represents the strength of the field at points 1, 2, and 3.

QUESTION 5 The figure to the right shows a current element, 11, that is part of some larger circuit. T his prob- lem asks you to rank the relative magnitudes of the contributionto the magnetic field at three points equidistant to the center of the cur- rent. The points 1, 2, and 3 are equidistant for the center of the current element, select the inequal- ity that represents the strength of the field at points 1, 2, and 3 IAR Select One of the Following: (a) Bi = B2-B3 (d) B- B2 > B (e) B. > B2 = B3

Explanation / Answer

Option A. B1=B2=B3, according to Ampere Circulatal law integral ( B.dl) = mu(0) times current through the element for an infinite conductor of current. As all points are at same distance from the element, magnetic field B is same.

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