I don't know what to do about this, but 1) the opening definition on this page is circular--electronics is the study of electronic devices and 2)electrical engineering is not a subdivision of electronics; almost the opposite is true.
As to 2): One common way of putting the distinction between electrical and electronic engineering is to say that electrical engineers deal with the problems of large currents and electronics engineers deal with small ones (this is from a Web encyclopedia, and frankly, I'd never heard of it, though it makes a certain sense). Another way of making the distinction is to say that electronics concerns the modification of electrical currents to carry information.
Electrical engineering is concerned with power transmission, conversion from AC to DC, stepping voltage up or down, earthing a power supply, et al. One has to do these things to wire a house, build an electric fan, or design the ignition circuit for an automobile engine. It's nothing to do with electronic devices.
As to 1), I suspect the problem is mostly stylistic. This is not a dictionary, as someone keeps saying. So what's needed at the start is not a definition, per se, but a topic sentence. But a circular definition doesn't work.
I'd re-write, but I'm not sure what the acceptable definition of electronics is.
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