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Lec16-3VV - Lecture 16-1 Lecture Amperes Law in...

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Lecture 16 Lecture 16 - 1 Ampere’s Law in Magnetostatics The path integral of the dot product of magnetic field and unit vector along a closed loop, Amperian loop , is proportional to the net current encircled by the loop, 0 t C C C B dl B dl I μ = = ur r ± ± ± Choosing a direction of integration. A current is positive if it flows along the RHR normal direction of the Amperian loop, as defined by the direction of integration. Biot-Savart’s Law can be used to derive another relation: Ampere’s Law 0 1 2 ( ) i i μ
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