Then the resulting AC current can have any phase relative to that.

Two magnetic cores are used because the AC current will generate high voltage in the control windings.

The oscillator in the name referred to the fact that the device vibrated and moved water in response to a driving AC current.

Vibration moves the plates, causing the capacitance to vary, in turn inducing AC current.

Have you ever known what it was to witness the beauty of the naked copper wires when an AC current is turned on?

In 1935 the transition from DC to AC current was made available.

Eddy currents are the root cause of the skin effect in conductors carrying AC current.

The creatures tend to bite cables carrying AC current.

They also held executions of animals for the press in order to ensure that AC current was associated with electrocution.

Nor is this a machine meant to be used routinely where regular AC current is not available.