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Biot-Savart Law

Biot-Savart Law. Magnetic Field around a straight wire. I. dS. ^. r. a. r. θ. P. For an infinite wire. Magnetic Field Due to a Curved Wire Segment.

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Biot-Savart Law

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  1. Biot-Savart Law

  2. Magnetic Field around a straight wire I dS ^ r a r θ P

  3. For an infinite wire

  4. Magnetic Field Due to a Curved Wire Segment Calculate the magnetic field at point O for the current carrying wire segment shown. The wire consists of two straight portions and a circular arc of radius a which subtends an angle θ. (Pg. 865 Example 30.2)

  5. Magnetic field at point O from sections AA’ and CC’ is zero because For the curved section

  6. Magnetic Field on the Axis of a Circular Current Loop Consider a circular wire loop of radius a located in the yz plane and carrying a steady current I as in Figure 30.5. Calculate the magnetic field at an axial point P a distance x from the center of the loop. (Pg. 866 Example 30.3)

  7. Only need to worry about dBx

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