1. Electrical Method
   • Process: An iron bar is placed inside a solenoid (a coil of wire) and connected to a high direct current (DC) power supply for a period.
   • Characteristics: The iron bar becomes magnetized only while the current flows through the solenoid. Once the current is turned off, the magnetism is lost.
   • Diagram: [Illustration of iron bar inside solenoid with current flow]
2. Stroking Method
   • Process: A steel or iron bar is stroked with one end of a magnet in a single direction along its length. The bar becomes magnetized due to the alignment of its magnetic domains.
   • Characteristics: This method creates a permanent magnet, although the magnetism might be weaker compared to other methods.
   • Diagram: [Illustration of bar being stroked with a magnet]

Note:

• Like poles of a magnet repel each other (e.g., North-North or South-South).
• Unlike poles of a magnet attract each other (e.g., North-South).