Magnetic fields (AQA A-Level Physics): Flashcards
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Practise the cards
10 cards from this deck
What is the shape of the magnetic field around a straight current-carrying wire?
What is the shape of the magnetic field around a straight current-carrying wire?
Concentric circles
What does magnetic flux density () measure?
What does magnetic flux density () measure?
Strength of a magnetic field
Unit of magnetic flux density
Unit of magnetic flux density
Tesla ()
Definition of 1 Tesla
Definition of 1 Tesla
1 N on 1 m wire, 1 A current, at right angles to field
Force on wire when current is parallel to magnetic field
Force on wire when current is parallel to magnetic field
No force
Force on wire when current is perpendicular to magnetic field
Force on wire when current is perpendicular to magnetic field
Maximum force
Formula for force on current-carrying wire in field
Formula for force on current-carrying wire in field
Fleming's Left-Hand Rule: thumb represents
Fleming's Left-Hand Rule: thumb represents
Direction of motion (force)
Fleming's Left-Hand Rule: first finger represents
Fleming's Left-Hand Rule: first finger represents
Direction of magnetic field
Fleming's Left-Hand Rule: second finger represents
Fleming's Left-Hand Rule: second finger represents
Direction of conventional current