Eva makes a graphic organizer to compare electromagnets with solenoids. which description belongs in the region marked x? a) has a magnetic field like a bar magnet b) has a metal core c) uses electromagnetic induction d) uses an electric current

Answer;

B) has a metal core

Explanation;A solenoid refers to a cylindrical coil of wire that has a diameter which is smaller than its length. When an electric current flows through the wire the solenoid generates a magnetic field similar to that of a bar magnet. An electromagnet is a solenoid wound around a central iron core.The solenoid becomes an electromagnet when a current flows through it.  An electromagnet is a solenoid wound around a central iron core.Both solenoids and electromagnets use electric current and coiled wires to produce strong magnetic fields.