Report - P r R r dB a α z dx r dB xgaypatrick.weebly.com/uploads/1/0/3/5/10355454/... · 3 0 ( ) sin 4 r dx r θ π µ I B ∫dB ∫ +∞ −∞ = x R θ − tan = ⇒ θ = − tan R x donc,

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