1
Magnetic field lines
Use field lines to represent direction and strength of magnetic field.
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Magnetic Effects of Electric Current
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2
Bar magnet field pattern
Sketch field lines and identify poles and direction.
3
Properties of field lines
State why field lines do not intersect and how spacing shows strength.
4
Field around wire
Use right-hand thumb rule to find field direction.
5
Field of current loop
Explain how field lines combine near the centre of a loop.
6
Solenoid field
Compare solenoid field pattern with a bar magnet.
7
Make electromagnets stronger
Predict effects of current, turns and core material on electromagnet strength.
8
Force on current wire
Identify when a conductor experiences force in a magnetic field.
9
Use Fleming’s left-hand rule
Find direction of force, current or magnetic field using the rule.
10
What changes magnetic force?
Relate force to current, magnetic field strength and conductor length.
11
AC or DC?
Compare direction, frequency and common sources of DC and AC.
12
Why AC is useful
Describe why AC is preferred for long-distance supply.
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