a.[3]
Draw the magnetic field pattern in the gap between the two North poles of the magnets shown below.
Include arrows on your field lines.
b.[1]
Explain how the magnetic behavior of an induced magnet differs from that of a permanent magnet when they are removed from an external magnetic field.
c.[2]
A student writes the following passage about electromagnets:
ElectromagnetsAn electromagnet is a solenoid with an iron core.When a static electric charge is placed on the wire, a magnetic field is created.The strength of this magnetic field can be increased by decreasing thenumber of turns of the coil. \begin{array}{|l|}\hline \textbf{Electromagnets} \\ \\ \text{An electromagnet is a solenoid with an iron core.} \\ \text{When a static electric charge is placed on the wire, a magnetic field is created.} \\ \text{The strength of this magnetic field can be increased by decreasing the} \\ \text{number of turns of the coil.} \\\hline \end{array} ElectromagnetsAn electromagnet is a solenoid with an iron core.When a static electric charge is placed on the wire, a magnetic field is created.The strength of this magnetic field can be increased by decreasing thenumber of turns of the coil.The student makes two mistakes in their description. Identify the two mistakes.