Electrical engineering has now subdivided into a wide range of subfields including electronics, digital computers, computer engineering, power engineering, telecommunications, control systems, robotics, radio-frequency engineering, signal processing, instrumentation, and microelectronics. Many of these subdisciplines overlap with other engineering branches, spanning a huge number of specializations such as hardware engineering, power electronics, electromagnetics & waves, microwave engineering, nanotechnology, electrochemistry, renewable energies, mechatronics, electrical materials science, and much more.
source: IEEE
https://tryengineeringinstitute.ieee.org/what-is-electrical-engineering-anyway/
大電細電係old-fashioned terms.EE develop到而家,根本就冇所謂既大細電之分,北美同全球好多地方都冇再分大細電,一律係叫electrical engineering.