4.1. Simple magnetism and magnetic fields
A subsection of Physics, 5054, through 4. Electricity and magnetism
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shows a magnet, two compasses and two nails. On , draw an arrow in each compass to show the direction of the magnetic field at the two positions. The magnet causes the nails to become magnetised by induction. Both ends of each nail become magnetic poles. On , mark an N or an S at each end of the two nails to show the magnetic poles. When the magnet is removed, the nails are still magnetised. Describe with the aid of a diagram how the nails can be demagnetised. compass compass nails magnet S N Use
5054_w06_qp_2
THEORY
2006
Paper 2, Variant 0
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