ch29-p029

ch29-p029 - 29. Using the right-hand rule (and symmetry),...

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Unformatted text preview: 29. Using the right-hand rule (and symmetry), we see that B net points along what we will refer to as the y axis (passing through P), consisting of two equal magnetic field ycomponents. Using Eq. 29-17, µi | Bnet | = 2 0 sin θ 2π r where i = 4.00 A, r = r = d 22 + d12 / 4 = 5.00 m, and → θ = tan −1 ⎜ Therefore, | Bnet | = ⎛ d2 ⎞ −1 ⎛ 4.00 m ⎞ −1 ⎛ 4 ⎞ ⎟ = tan ⎜ ⎟ = tan ⎜ ⎟ = 53.1° . ⎝ 6.00 m / 2 ⎠ ⎝3⎠ ⎝ d1 / 2 ⎠ µ0i (4π×10−7 T ⋅ m A)(4.00 A) sin θ = sin 53.1° = 2.56 ×10−7 T . πr π (5.00 m) ...
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This note was uploaded on 06/08/2010 for the course PHY 1356 taught by Professor Bonamente during the Spring '10 term at UAA.

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