Lacquer – LAN – Laplace transform – Laser diode – Leakage inductance – Least squares – Light-emitting diode – Line integral – Linear alternator – linear differential equation – Linear matrix inequality – Linear motor – Linear variable differential transformer – linear – Lineman (occupation) – List of calculus topics – List of chemistry topics – List of railway electrification systems – List of electrical engineering topics – List of electrical engineers – List of electronics topics – List of mathematical topics – List of people in systems and control – List of physics topics – List of Russian electrical engineers – Litz wire – Load flow study – Load following power plant – Load-loss factor – Load management – Load profile – Local positioning system – LORAN – Lorentz force law – Loss power – Lossless data compression – Lossy data compression – Loudspeaker – Low-pass filter – LTI system theory – Lumen (unit) – Lumped parameters – Lyapunov stability – Lynch motor –