The differential form of the equation (again, including Maxwell's correction) is ∇ × B = 1 c ( 4 π J + ∂ E ∂ t ) . {\displaystyle \mathbf {\nabla } \times \mathbf {B} ={\frac {1}{c}}\left(4\pi \mathbf {J} +{\frac {\partial \mathbf {E} }{\partial t}}\right)\,.} Ampère never utilized the field concept in any of his works; cf. Assis, André Koch Torres; Chaib, J. P. M. C; Ampère, André-Marie (2015).
Диференцијалната форма на равенката (повторно вклучувајќи ја Максвеловата корекција) е ∇ × B = 1 c ( 4 π J + ∂ E ∂ t ) . {\displaystyle \mathbf {\nabla } \times \mathbf {B} ={\frac {1}{c}}\left(4\pi \mathbf {J} +{\frac {\partial \mathbf {E} }{\partial t}}\right)\,.} Ampère never utilized the field concept in any of his works; cf. Assis, André Koch Torres; Chaib, J. P. M. C; Ampère, André-Marie (2015).