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Figure 4 shows the shape of the magnetic field near a bar magnet - Edexcel - GCSE Physics Combined Science - Question 3 - 2022 - Paper 1
Question 3
Figure 4 shows the shape of the magnetic field near a bar magnet. (i) Draw arrows on the field lines in Figure 4 to show the direction of the magnetic field. (ii) ... show full transcript
Worked Solution & Example Answer:Figure 4 shows the shape of the magnetic field near a bar magnet - Edexcel - GCSE Physics Combined Science - Question 3 - 2022 - Paper 1
Step 1
Draw arrows on the field lines in Figure 4 to show the direction of the magnetic field.
Answer
To show the direction of the magnetic field around the bar magnet, you need to draw arrows emanating from the North (N) pole and curving towards the South (S) pole. Therefore, the arrows should be drawn outward from the N pole and in towards the S pole, creating a series of lines that illustrate the field's direction.
Step 2
Place a letter X on Figure 4 at a place where the magnetic field is strongest.
Answer
The magnetic field is strongest at the poles of the magnet. Therefore, you should place the letter X just to the left of the N pole or just to the right of the S pole, where the field lines are most concentrated.
Step 3
Describe two differences between the magnetic field shown in Figure 4 and a uniform magnetic field.
Answer
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The magnetic field shown near the bar magnet is non-uniform, as it varies in strength and direction, whereas a uniform magnetic field is characterized by parallel field lines that are equally spaced, indicating constant strength and direction.
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In the bar magnet's field, the lines converge and diverge around the poles, while in a uniform magnetic field, the lines remain straight and parallel, showing no variation in distance between them.