Pearson Edexcel International GCSE (9–1) · PHYSICS · Section
Creating a uniform magnetic field
16 practice questions
Practice questions
11–16 of 16
Question 11
4 marks · Normal
Answer and see the solution →The apparatus below shows two bar magnets:
Bar magnets set up for field observation Draw on the diagram the pattern of magnetic field lines in the region between the north pole of magnet 1 and the south pole of magnet 2. Label the direction of the field.
Question 12
1 mark · Normal
Answer and check →Which arrangement creates the strongest uniform magnetic field between two bar magnets?
- A.Bar magnets arranged with N–S poles directly facing, close together
- B.Bar magnets arranged with N–N poles directly facing, close together
- C.Bar magnets end to end with a large gap
- D.Bar magnets side by side aligned in the same direction
Question 13
3 marks · Normal
Answer and see the solution →Describe how you could use iron filings and two bar magnets to show the difference between the field near the end of a single magnet and the field between two opposing poles. Include the expected patterns.
Question 14
4 marks · Normal
Answer and see the solution →A student wants to demonstrate a uniform magnetic field using two permanent bar magnets in a simple classroom experiment.
(a)[1 mark]State how the bar magnets should be positioned to create a region of uniform magnetic field.
(b)[1 mark]Suggest one way, apart from iron filings, the student could check that the field is uniform.
(c)[2 marks]The student tries to move a small piece of iron slowly through the region between the poles. Predict what will happen to the piece of iron and explain your answer.
Question 15
3 marks · Normal
Answer and see the solution →Explain, with reference to field lines, why the region just outside the gap between two opposite magnet poles is not uniform, even when the gap itself is.
Question 16
3 marks · Normal
Answer and see the solution →A student records the direction a magnetic compass points at different places between two bar magnets with unlike poles facing each other. The compass needle always points straight from one pole to the other across the gap. What does this suggest about the magnetic field in this region? Explain your answer.