Physics · Oct / Nov 2020 · Paper 42 · Question 9
0625
As printed in the paper
Show the answer and mark scheme
9(a)(i)[2]
C pointing horizontally to right
B AND D pointing horizontally to left
9(a)(ii)[1]
S on left AND N on right
9(b)[2]
any one of the following methods:
1
heat magnet
to high temperature / red hot
2
hammer the magnet
repeatedly / in E–W direction
3
(place) magnet in a coil / solenoid carrying a.c.
remove magnet from coil OR decrease current (slowly) to zero
9(c)(i)[2]
at least 3 concentric circles
closer together near the wire AND clockwise arrow
9(c)(ii)[1]
arrows OR field reverses / is in opposite direction
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