Electric Motors (AQA GCSE Physics Combined Science): Flashcards
📚Flashcards
Practise the cards
14 cards from this deck
ShowHide
Practise the cards
14 cards from this deck
Effect on current-carrying coil in magnetic field
Effect on current-carrying coil in magnetic field
Experiences force that can cause rotation
Component free to rotate between poles in DC motor
Component free to rotate between poles in DC motor
Coil of wire
What each coil end connects to
What each coil end connects to
Split-ring commutator
What current creates around the coil
What current creates around the coil
Magnetic field
Result of magnetic fields interacting in motor
Result of magnetic fields interacting in motor
Force exerted on coil
What determines force direction on wire in motor
What determines force direction on wire in motor
Direction of current
Rule to find force direction on coil
Rule to find force direction on coil
Fleming's left-hand rule
What causes coil rotation in motor
What causes coil rotation in motor
Upward force on one side, downward on other
Position where coil initially stops
Position where coil initially stops
Vertical position
Frequency split-ring changes current direction
Frequency split-ring changes current direction
Every
Purpose of split-ring re: torque
Purpose of split-ring re: torque
Ensures torque continues in same direction
Role of carbon brushes in motor
Role of carbon brushes in motor
Connect rotating & stationary parts
What carbon brushes prevent
What carbon brushes prevent
Coil from tangling
What maintains coil rotation after half spin
What maintains coil rotation after half spin
Reversed current