A student moves a horseshoe magnet across a tabletop with different distances from an electromagnet, as shown in the diagram below.Use the student’s observations below to any the following question:Observations20 inches: no force required10 inches: small force required; easy to hold in place5 inches: large force required; very difficult to hold in place What do the student's observations demonstrate?(1 point)ResponsesThe electromagnet's magnetic field becomes weaker as more magnetic material is added to it.The electromagnet's magnetic field becomes weaker as more magnetic material is added to it.The electromagnet's magnetic field becomes stronger as a small amount of strength is added to the system by the battery.The electromagnet's magnetic field becomes stronger as a small amount of strength is added to the system by the battery.The electromagnet's magnetic field is stronger as more turns are added to the wire on the nail.The electromagnet's magnetic field is stronger as more turns are added to the wire on the nail.The electromagnet's magnetic field is stronger when close to it than far from itThe electromagnet's magnetic field is stronger when close to it than far from itSkip to navigation

Answer 1

The student's observations demonstrate that "The electromagnet's magnetic field is stronger when close to it than far from it."

This conclusion is based on the observations indicating that as the distance between the horseshoe magnet and the electromagnet decreases, the required force to hold the horseshoe magnet in place increases. This suggests that the strength of the magnetic field from the electromagnet is greater at shorter distances.