(a)[1]
Underline the material that can be used to make a permanent magnet. aluminium, copper, soft iron, mercury, plastic, steel, uranium
(b(i))[1]
Describe what is meant by the direction of a magnetic field. State the direction of the magnetic field between the two poles shown in Fig. 7.1.
(b(ii))[3]
Describe and explain what happens to the beam of electrons in the magnetic field between the poles of the magnet shown in Fig. 7.1.
(c)[3]
Explain how a uniform magnetic field can be used to separate the α-particles, the β-particles and the γ-rays.