CAIE IGCSE Physics 4.1.8 Plotting of Magnetic Field Lines with Questions

Learn how a compass needle aligns with the local magnetic field around a bar magnet, helping you trace field direction and draw accurate arrows in exam diagrams.

Exam points

Draw a plotting compass needle so its N end follows the field in the gap, use compass arrows at labelled positions to show the direction of the magnetic field, and infer field direction around a bar magnet from the north-seeking compass end.

[Maximum number: 1]

Fig. 7.2 is a repeat of Fig. 7.1 showing the two magnets.

On Fig. 7.2, draw the position of a plotting compass needle when it comes to rest in the gap between the N pole and the S pole.

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CAIE IGCSE Physics 4.1.8 Plotting of Magnetic Field Lines with Questions question 1