> learning the basic principles of elementary particles, electric charge, electric fields, and electromagnetic force, without diving into the mathematics behind

> learning the basic principles of elementary particles, electric charge, electric fields, and electromagnetic force, without diving into the mathematics behind them I cannot emphasize this enough for those who have a "water in a pipe" mental model of DC electric circuits but struggle to intuitively grasp AC and RF concepts like filters, fields, transformers, antennas, or even buck/boost converters. Once you're able to mentally reduce some of these circuits to an understanding of the forces upon a single electron at any point in the circuit at any point in time, you being to be able to create your own designs rather than relying on the examples of others.