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Chrome File Edit View History Bookmarks People Window Help Mastering Physics: HW7 Secure https Sessio mastering physi cs.com/ 77464210 Physics 2200 New Problem 27.66 Mastering Problem 27.66 Part A 3 My Cour A wire 25.0 cm long lies along the z-axis and Find the x component of the magnetic force on the wire. carries a current of 7,80 A in the +z-direction. The Course H magnetic field is uniform and has components Bz -0.212 T.BD m -0.964 T. and B -0.336 T Syllabus Assign Submit My Answers Give Up Scores Course Part B Find the y component of the magnetic force on the wire. eText Student S I Manual Study Ar User Set Submit My Answers Give U Part C Find the z-component of the magnetic force on the wire. PEARSON Copyright 2017 Pearson. All rights reserved 86% Sat 4:36 PM Resources previous l 21 of 22 l next

Explanation / Answer

Part A

Magnetic force F on a wire carrying current I in a field B is given by,

F = ILXB

or, F = (7.8A)(0.25 m)kX(-0.212 T i - 0.964 T j - 0.336 T k)

or, F = -0.4134 j + 1.8798 i

or, F = (1.8798 i - 0.4134 j)N

So, x-component of Force is,

Fx = 1.8798 N

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Part B

y-component of Force is,

Fy = - 0.4134 N

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Part C

z-component of Force is,

Fz = 0 N

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Part D

The magnitude of net force on the wire is,

F = (Fx2 + Fy2)1/2 = [(1.8798 N)2 + (- 0.4134 N)2]1/2

or, F = 1.925 N

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