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4.1 Magnets and magnetic fields

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Question 29
H

Two identical bar magnets are placed in a line with their north poles facing each other.

The magnetic field is zero at the point exactly halfway between the two poles.

Which statement explains why?

[1]
A

The fields from the two poles are equal in size and opposite in direction

B

The field lines from each pole are blocked by the field of the other pole

C

Two north poles repel each other, so neither pole produces a field there

D

The field lines from the two poles join up and form a loop at that point

Markscheme

4.1 Magnets and magnetic fields Questions

  1. GCSE
  2. /Physics
  3. /4.1 Magnets and magnetic fields

44 exam-style questions on OCR GCSE Physics 4.1 Magnets and magnetic fields, covering 4.1.1 Magnetic poles, attraction and repulsion, 4.1.2 Permanent and induced magnets, 4.1.3 The magnetic field of a magnet, 4.1.4 Compasses and the Earth's magnetic field, 4.1.5 The magnetic field around a current-carrying wire, 4.1.6 Field strength, current and distance, and 4.1.7 Solenoids and electromagnets. Each one has a worked solution and a mark scheme showing where the marks go.

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