Main Question or Discussion Point
In illustrating mutual inductance, there is a primary coil and a secondary coil, which houses an induced current. In applying Lenz’s Law to the direction of the secondary coil’s induced current, the status of the switch must be taken into account. If the switch is closed, does the secondary coil’s induced current flow in a counterclockwise direction (much like in the case when a bar magnet’s north pole is positioned towards a solenoid)? If the switch is opened, does the induced current flow in a clockwise direction (much like in the case when a bar magnet’s north pole is traveling away from the solenoid)?