- #1
elegysix
- 406
- 15
Hi, I'm new to relays.
As I understand it, there is a coil which creates a magnetic field to cause the armature to move (such as a plunger) and closes the contacts of another circuit. My question is this - how can the AC cause the plunger to move? isn't the AC producing sinusoidal B field, which would cause the plunger to vibrate, not extend?
Or is the armature made of say aluminum where the changing B field always causes repulsion?
thanks
As I understand it, there is a coil which creates a magnetic field to cause the armature to move (such as a plunger) and closes the contacts of another circuit. My question is this - how can the AC cause the plunger to move? isn't the AC producing sinusoidal B field, which would cause the plunger to vibrate, not extend?
Or is the armature made of say aluminum where the changing B field always causes repulsion?
thanks