Connecting the ends of one of the coils with a galvanometer, he found that the moment the ring was magnetised, by sending a current through the other coil, the galvanometer needle whirled round four or five times in succession.

The action, as before, was that of a pulse, which vanished immediately.
On interrupting the circuit, a whirl of the needle in the opposite direction occurred.

It was only during the time of magnetization or demagnetization that these effects were produced.

The induced currents declared a change of condition only, and they vanished the moment the act of magnetization or demagnetization was complete.
The effects obtained with the welded ring were also obtained with straight bars of iron.

Whether the bars were magnetised by the electric current, or were excited by the contact of permanent steel magnets, induced currents were always generated during the rise, and during the subsidence of the magnetism.