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A student investigates how the magnetic flux density of a bar magnet varies with distance from its north pole.

The grid in Figure 1 shows most of the student's results plotted.

Scatter graph showing magnetic flux density in milliTesla (mT) on the y-axis against distance from the pole in millimetres (mm) on the x-axis. The y-axis scale goes from 0 to 60 in increments of 10, with major grid lines every 10 units and minor grid lines every 1 unit. The x-axis scale goes from 0 to 50 in increments of 10, with major grid lines every 10 units and minor grid lines every 1 unit. Six points are already plotted at: (10, 58), (20, 34), (25, 27), (30, 22), (40, 15), and (50, 11).

The table in Figure 2 shows two additional sets of results.

Figure 2

Distance from pole (mm)Magnetic flux density (mT)
1544
3518

Plot the two extra data points from Figure 2 onto the graph in Figure 1.

[2]

Magnets and magnetic fields Questions

Practise Edexcel GCSE Physics Magnets and magnetic fields with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Edexcel GCSE Physics (1PH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

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Magnets and magnetic fields Questions

  1. GCSE
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