Jim Kelley wrote:
"The coil does cause a delay between current and voltage, and as theory
would indicate that delay (and V/I phase relationswhip) appears
everywhere in the series circuit."

As an example, place a perfect coil and a perfect resistor in a series
combination. The voltage drop across the resistor is exactly in-phase
with the current throuigh the resistor. It is independent of the phase
of the circuit current. The voltage drop across the coil precedes the
current through the coil by 90-degrees.

The phase of current in the series circuit with respect to the voltage
applied to the circuit is determined with vector math.

Best regards, Richard Harrison, KB5WZI