ConceptConceptDocsDocuments

Edexcel IGCSE Physics 6.10P magnetic field patterns

Practise magnetic field patterns by drawing field lines, adding direction arrows and using the pattern to identify solenoid poles.

Syllabus
First assessment 2019
Course
Physics 4PH1

Exam points

  • Draw concentric field lines around a straight wire with arrows matching current direction.
  • Sketch solenoid or coil field lines and use them to label the north pole on a diagram.
  • Keep field lines non-crossing and show a consistent direction through the whole pattern.

6.10P Magnetic field patterns question 1

[Maximum number: 3]

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 6.10P Magnetic field patterns question 1 — Edexcel IGCSE Physics

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

Figure for Question 6.10P Magnetic field patterns question 1 — Edexcel IGCSE Physics

Question (a)

(a)

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 (b)

(b)

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

[ 1 ]
All question bank results loaded