Move a magnet into a coil of wire attached to an ammeter and current will be produced (for an instant).
Stop moving the magnet and the current reduces to zero.
Withdraw the magnet and a current flows - this time it is the other way.
Push the coil over the magnet and a current is produced.
Stop the movement and there will be no current.
Pull the coil back off the magnet and current flows the other way.
A posh physics term for the current produced is "induced current".