A current-carrying conductor and a permanent magnet are each held stationary by a separate force sensor. The magnetic interaction pushes the conductor to the east with a force of 0.20 N.
Which statement about the forces exerted by the two sensors is correct?
Each sensor exerts a force of 0.20 N: the conductor's sensor acts to the west and the magnet's sensor acts to the east.
Only the conductor's sensor exerts a force of 0.20 N to the west; the magnet's sensor exerts no force.
Neither sensor exerts a force because the equal magnetic forces cancel across the two-object system.
Each sensor exerts a force of 0.20 N: the conductor's sensor acts to the east and the magnet's sensor acts to the west.