Bar Magnet Computer Model Intensity Hide Field Reset

Magnetic Bar Field Simulation

This simulation shows a bar magnet with a uniform field inside the magnet pointing from the south (blue) side to the north (red) side. Outside, the field is approximated by summing multiple dipoles. You can:

• Drag the magnet by clicking its body.
• Drag the compass by clicking anywhere on the circular compass.
• Check “Intensity” to adjust arrow brightness.
• Press “Hide Field” to hide field arrows and labels on the magnet (N → ?).
• Use “Reset” to return to the initial state.

Teaching/Learning Tips:

• Inside the magnet, the field is shown as a constant vector from S to N, illustrating its internal magnetization.
• The compass aligns with the local field, so students can explore field directions in different regions.
• Encourage learners to predict field strengths/orientations, then test by dragging the compass.