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Edexcel IGCSE Physics 6 Magnetism and Electromagnetism Questions

Practise magnetic fields, forces, electromagnets and induction using pole labels, field-line diagrams, circuits and direction rules.

Syllabus
First assessment 2019
Course
Physics 4PH1

Covered syllabus points

Magnetism and electromagnetism units(b) Magnetism(c) Electromagnetism(d) Electromagnetic induction

Question 1

[Maximum number: 7]

The region of space around a magnet is known as a magnetic field.

Question (a)

(a)

Which of these diagrams correctly represents the magnetic field around a bar magnet?

A
Figure for Question (a) — Edexcel IGCSE Physics — Option A
B
Figure for Question (a) — Edexcel IGCSE Physics — Option B
C
Figure for Question (a) — Edexcel IGCSE Physics — Option C
D
Figure for Question (a) — Edexcel IGCSE Physics — Option D
[ 1 ]

Question (b)

(b)

The diagram shows two bar magnets placed close together.

Figure for Question (b) — Edexcel IGCSE Physics
Figure for Question (b) — Edexcel IGCSE Physics
[ 2 ]

Question (i)

(i)

Which of these describes what happens to the two magnets?

A

nothing happens

B

they attract

C

they repel

D

they spin

[ 1 ]

Question (ii)

(ii)

Which of these magnet arrangements gives a uniform field between the poles?

A
Figure for Question (ii) — Edexcel IGCSE Physics — Option A
B
Figure for Question (ii) — Edexcel IGCSE Physics — Option B
C
Figure for Question (ii) — Edexcel IGCSE Physics — Option C
D
Figure for Question (ii) — Edexcel IGCSE Physics — Option D
[ 1 ]

Question (c)

(c)

State the name of a material that would be suitable for use as a permanent magnet.

[ 1 ]

Question (d)

(d)

Describe an investigation that could be used to determine the shape of the magnetic field around a bar magnet.

[ 3 ]

Question 2

[Maximum number: 11]

The diagrams show some equipment that the physicist Ørsted used in an investigation in 1820.

Diagram 1 shows the position of eight compass needles around a wire with no current in the wire.

The compass needles line up with and show the direction of the Earth's magnetic field lines.

Figure for Question 2 — Edexcel IGCSE Physics

Diagram 2 shows the position of the same compass needles when a current is in the wire.

Figure for Question 2 — Edexcel IGCSE Physics

Question (a)

(a)

Explain why the compass needles turn when the current is switched on.

[ 2 ]

Question (b)

(b)

Using evidence from the compass needles in diagram 2, draw on diagram 2 the shape and direction of a magnetic field line produced by the current in the wire.

[ 2 ]

Question (c)

(c)

Suggest what happens to the magnetic field when the current in the wire is reversed.

[ 1 ]

Question (d)

(d)

The current in the wire is turned off.

Diagram 3 shows the wire placed in a uniform magnetic field.

Diagram 3

Diagram 3

The current is now switched on.
Draw an arrow to show the direction of the force on the wire.

[ 2 ]

Question (e)

(e)

The power supply in diagram 3 is replaced by an ammeter.

[ 4 ]

Question (i)

(i)

When the wire is moved, a current is detected.

Explain which direction the wire is moved in the magnetic field to produce a current in the wire.

[ 2 ]

Question (ii)

(ii)

Explain why a current is produced in the wire when the wire is moved in the magnetic field.

[ 2 ]
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