Before revision: Types Electrical conduction: Hard-wire conduction , also called conductive coupling and galvanic coupling Resistive conduction Atmospheric plasma channel coupling Electromagnetic induction: Electrodynamic induction — Commonly called inductive coupling, also magnetic coupling.
After revision: Types Electrical conduction: Direct coupling , also called conductive coupling and galvanic coupling Resistive conduction Atmospheric plasma channel coupling Electromagnetic induction: Electrodynamic induction — Commonly called inductive coupling, also magnetic coupling.