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Plotting magnetic lines of force using the Iron Fillings method

By Anupam M

Let’s see how to plot magnetic lines of force using the Iron Fillings method.

  • Place a sheet of paper on top of a bar magnet and sprinkle iron filings thinly and evenly onto the paper.
  • Tap the paper gently with a pencil and the filings should form patterns showing the lines of force. (figures below)
  • Each filing turns in the direction of the field when the paper is tapped.
  • This method is quick but of no use for weak fields.

Plotting magnetic lines of force using the Iron Fillings method (figure 1)
Plotting magnetic lines of force using the Iron Fillings method (Figure 1)

Plotting magnetic lines of force using the Iron Fillings method - figure 2
Plotting magnetic lines of force using the Iron Fillings method (Figure 2)

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