Pearson Edexcel International GCSE (9–1) · PHYSICS · Section
CREATING A UNIFORM MAGNETIC FIELD
16 practice questions
Practice questions
1–10 of 16
Question 1
1 mark · Easy
Answer and see the solution →What is meant by a uniform magnetic field?
Question 2
2 marks · Easy
Answer and see the solution →Two bar magnets are placed with their north pole of one facing the south pole of the other and a small gap between them.
(a)[1 mark]Describe the shape of the magnetic field formed in the gap between the poles.
(b)[1 mark]Explain why this arrangement produces a uniform magnetic field.
Question 3
1 mark · Easy
Answer and check →Which statement describes a region where the magnetic field is definitely uniform?
- A.Between two parallel, opposite poles with straight, evenly spaced lines
- B.Near only one pole of a bar magnet
- C.Outside two magnets placed end-to-end with like poles facing
- D.Where field lines are curved and spread out
Question 4
2 marks · Easy
Answer and see the solution →Give two reasons why a uniform magnetic field is useful in laboratory experiments.
Question 5
1 mark · Easy
Answer and check →Which arrangement will create the most uniform magnetic field?
- A.Two U-shaped magnets with their open ends facing each other, forming a gap
- B.Two bar magnets with like poles together
- C.One bar magnet placed on its side
- D.A single circular coil of wire
Question 6
2 marks · Easy
Answer and see the solution →Look at the pair of magnets below. The north pole of one is facing the south pole of the other with a uniform gap.
Two bar magnets with ends facing (a)[1 mark]State what you would observe if you placed iron filings in the gap between the magnets.
(b)[1 mark]Explain why this observation occurs.
Question 7
2 marks · Easy
Answer and see the solution →Explain how you can tell from a diagram whether the magnetic field shown is uniform or not.
Question 8
1 mark · Easy
Answer and see the solution →What do the even spacing of magnetic field lines between two magnets tell you about the field in that region?
Question 9
2 marks · Normal
Answer and see the solution →State two ways to identify a region of uniform magnetic field between the poles of two bar magnets.
Question 10
3 marks · Normal
Answer and see the solution →Figure 1 shows two U-shaped magnets set up on a laboratory bench with their open ends facing each other and a gap between them.
The magnets are arranged so that the facing poles across the gap are north and south.
(a)[2 marks]Describe, with reference to magnetic field lines, why this arrangement produces a uniform magnetic field in the gap.
(b)[1 mark]Suggest one use for a region of uniform magnetic field in a physics experiment.