Figure 5. Γ surface surrounds current element J2. Current element J2 Outside zone v. Normal vector It is inconsistent with the direction of normal vector . So there is an extra minus sign

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Energy Flow and Photons from Primary Coil to Secondary Coil of Transformer

Shuang-ren Zhao

International Journal of Physics. 2023, 11(1), 24-39 doi:10.12691/ijp-11-1-4