* Electromagnetic Induction: When a magnet moves through a coil of wire, it creates a changing magnetic field. This changing magnetic field induces an electromotive force (EMF) in the coil, which in turn causes a current to flow.
* Direction of Current: The direction of the induced current depends on the direction of the magnet's motion and the orientation of the coil.
* Brief Deflection: The current flow is only present while the magnet is moving through the coil. As the magnet enters the coil, the current flows in one direction. As it exits the coil, the current flows in the opposite direction. Once the magnet has completely passed through, the current stops.
In Summary:
The ammeter will show a brief deflection as the magnet enters and exits the coil, with the needle moving in opposite directions for each event. The duration of the deflection will be very short, and the magnitude of the deflection will depend on the strength of the magnet, the speed of the magnet, the number of turns in the coil, and the resistance of the coil.
