„Jöfnur Maxwells“: Munur á milli breytinga

| <math>\oint_{\partial S} \mathbf{E} \cdot \mathrm{d}\mathbf{l} = - \frac {d \Phi_{B,S}}{dt} </math>

|-

| <math>\nabla \times \mathbf{B} = \mu_0 \mathbf{J} + \mu_0 \epsilon_0 \frac{\partial \mathbf{E}} {\partial t}</math>

| <math>\oint_{\partial S} \mathbf{B} \cdot \mathrm{d}\mathbf{l} = \mu_0 I_S + \mu_0 \epsilon_0 \frac {d \Phi_{E,S}}{dt}