Ben walks 2 m from his desk to the teachers desk. from the teachers desk, he then walks 3 m in the same direction to the classroom door. which table correctly represents both the distance and displacement of ben's motion?

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.