Consider the term in Eq (14) (or in Eq (10)) that gives the 1 r 2 dependence in the Hertzian dipole magnetic field Assuming this term dominates and that kr 1, show that the resulting magnetic field is the same as that found by applying the BiotSavart law (Eq (2), Chapter 7) to a current element of differential length d, oriented along the z axis, and centered at the origin Eq (14) Eq (10) Eq (2) 7 2 Iokd sin 0 exp j(kr Hos 84) 1 (kr) 4r Iod Hs sin 0 ejkr 4 2 r2

Question: Consider the term in Eq. (14) (or in Eq. (10)) that gives the 1/r 2 dependence in the Hertzian dipole magnetic field. Assuming this term

Consider the term in Eq. (14) (or in Eq. (10)) that gives the 1/r 2 dependence in the Hertzian dipole magnetic field. Assuming this term dominates and that kr Eq. (14)

7!/2 Iokd sin 0 exp[-j(kr Hos – 84)] 1+ (kr)? 4πr

Eq. (10)

Iod Høs - sin 0 e¯jkr 4л .2 r2

Eq. (2)

7!/2 Iokd sin 0 exp[-j(kr Hos 84)] 1+ (kr)? 4r Iod Hs

7!/2 Iokd sin 0 exp[-j(kr Hos 84)] 1+ (kr)? 4r Iod Hs - sin 0 ejkr 4 .2 r2

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