Comment on “Transformer impedance reflection demonstration”

William Layton proposes a demonstration¹ designed to clarify the operation of a transformer. He considers the isolation transformer that has the same number of turns in the primary as in the secondary coils. This means that L₁ = L₂ = L and Φ₁ = Φ₂ = Φ, where L is the inductance of the coils, indexes 1 and 2 correspond to the primary and secondary coils, and Φ is a magnetic linkage through the coils. Layton asks a question about a transformer with initially closed switches A and B, as presented in Fig. 1:

To answer this question, Layton considers the case when the secondary coil has...