Magnetic fields are defined in terms of the rotation of a small magnetic dipole.
This makes them quite different to electric and gravitational fields. Fortunately there is a lot you can memorise here, and the calculations required are less challenging as the magnetic field strength (flux density) tends to be constant.
Key Concepts
Use quizzes to practise application of theory.
START QUIZ!
A small magnet is placed at position P close to a bar magnet.
The orientation of the small magnet is
A small magnet is placed at position P close to a bar magnet
The orientation of the small magnet is:
A small magnet is placed at point P, between two magnets
Th orientation of the small magnet is
A small magnet is placed in the magnetic field shown
The magnet will:
The magnet will rotate to align with the field so that N points in the direction of the field
A magnet is placed in the magnetic field shown
The magnet will
The field at the N end of the magnet is stronger so will pull the magnet down as well as rotate it
A magna probe is a magnet suspended in such a way that it can rotate in 3 dimensions
If the probe is taken to the North magnetic pole the magnet will point
A magna probe is a magnet suspended in such a way that it can rotate in 3 dimensions
If the probe is taken to the Equator the magnet will point
How much of Magnets have you understood?
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