The Edge Current node specifies an electric line current along one or more edges.

For the Electromagnetic Waves, Frequency Domain interface, enter an Edge current I0 (SI unit: A).

For the Electromagnetic Waves, Transient interface, select Edge Current Type from User defined (the default), Electrostatic discharge, or Lightning. Enter pulse model parameter values and click the Plot Pulse Shape button to inspect the edge current pulse instantly as a function of time before running a simulation.

Enter an Edge current I0 (SI unit: A).

Select Electrostatic Discharge Pulse Model — Human body model (the default), Extended human body model, Machine model, or Charged device model. Enter the values for the model parameters.

Enter the values for the model parameters such as Lightning pulse amplitude, Lightning pulse rise time constant, Lightning pulse decay time constant, Lightning pulse parameter 1, and Lightning pulse parameter 2.

When the Electrostatic Discharge or Lightning is used for the Edge current type, select Parameterized path — Automatic (the default) or User defined. For User defined, specify the expression for the Parameterized path (SI unit: m). The default is set to the built-in variable s1. Enter an Pulse velocity (SI unit: m/s). The default is set to the built-in constant c_const, the speed of light. The expression for the Parameterized path should parameterize the edge where the Edge Current is applied. Select the Reverse direction check box as needed to reverse the direction of the current.