Electromagnetics

stupid fuckin dumb dunmy 4 credit brrrrrrrr

Cartesian to Cylindrical Conversion

in order to convert rectangular coords to cylindrical coords, take the derivative of each of the unit vectors and assume it’s magnitude to be equal to one

Cartesian to Spherical

For converting cartesian coordinates to spherical coordinates

Cross Product

wake me up when this shit never is relevant

value of permittivity of free space and by extension permeability

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Electric field due to line charge

Taking small elemental charge and using that to fully integral from one angle to another

Electric field due to surface charge

Taking a line element and integrating that from infinity to not

Are electric fields and magnetic fields coupled

Electric Fields depend on electric charges, and magnetic fields depend on the changing flux produced by such charges, which either can be changed by direction or magnitude.

Divergence in different coordinate systems

that sir is so annoying about all this bs

Curl in different coordinate systems

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Vector Calculus Identities

Divergence of Curl of a vector is 0

Curl of a gradient of a vector is 0

Biot Savarts Law

magnetic formula