Magnetising and Demagnetising Coil.

Hands-on demo: Magnetize an iron strip or small bar magnet using DC current and then demagnetize it with AC current to show domain alignment/disruption.

Visual learning: Ideal for explaining magnetic hysteresis and showing reversals in magnetic polarity.

Curriculum integration: Matches physics learning outcomes related to electromagnetism and field theory for secondary and early tertiary levels.