A student notices that when the fire alarms at the school go off, the doors close with the alarm and when the student tries to reconnect the door to the magnet
behind the door, it will not attract.
Which of the following arguments BEST describes the type of magnet the student is
observing
The magnet is a permanent magnet because the fire alarm is connected to the
circuit of the door. The magnet is always turned off.
1
12
The magnet is a permanent magnet because the fire alarm is connected to the
circuit of the door. The magnet is always turned on.
The magnet is a temporary magnet because the fire alarm is connected to the
circuit of the door. The magnet is currently turned on.
The magnet is a temporary magnet because the fire alarm is connected to the
circuit of the door. The magnet is currently turned off.
O