Compass Magnetic Needle: Use a bar magnet to move in the same direction so that the magnetic needles are arranged regularly. After the strip magnet is removed, this arrangement will not change. In this way, one end of the model becomes S pole and the other end becomes N pole, simulating the magnetization environment
Physics Experiment Equipment: Demonstrate the magnetic coil spectrum and polarity of the toroidal current magnetic field
Science Magnets Kit: Make it easier to understand electromagnetic induction
Compass Magnets: Demonstrate the magnetic field line map of the linear current magnetic field, and explain the relationship between the magnetic field direction and the current direction