Gauss vs Ampere

Tuesday, 11 September 2018

9:11 PM

Machine generated alternative text: Gauss' & Ampere's law — Compare & contrast _ q enc f É.di Ampere's law: f É.dS = goienc Gauss' law: Wire surface Am perian loop (9-0) They are very similar except that for Gauss' law you integrate over a closed 3D surface with charge inside, whereas in Ampere's law you integrate around a closed 2D path that's threaded by the current. For Gauss' law, the maths is easiest surface is locally perpendicular to the electric field. For Ampere's law, it's easiest when the loop is locally parallel to the magnetic field. UNSW Sctwol of Physics PHYS 1221/1231 1st Year Physics — Electromagnetism

 

 

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