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Explore how to apply Biot-Savart Law to calculate magnetic fields around straight and curved wire segments at specified points. Focus on axial magnetic field calculations.
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Magnetic Field around a straight wire I dS ^ r a r θ P
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)
Magnetic field at point O from sections AA’ and CC’ is zero because For the curved section
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)