= Electrical engineering
{wiki}
Electrical engineering designs systems that generate, transmit, measure and control electrical <energy> and information. An <electrical circuit> makes this concrete: <resistors>, <capacitors> and <inductors> turn <electric potential differences> into predictable <electric currents> and time-dependent responses. <Signal processing> then asks which information those responses preserve, suppress or reveal.
The connection is useful in both directions. A <series RLC circuit> selects a band of <frequencies> through its physical dynamics; a <moving average> selects frequencies by arithmetic on recorded samples. Both can be studied through a <frequency response>. The models differ, but the question is shared: what happens to each component of the <input>, and what does that do to the <output> we care about?
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