Current in a Magnetic Field (Leaving Cert Physics): Flashcards
📚Flashcards
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15 cards from this deck
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Practise the cards
15 cards from this deck
What is the motor effect?
What is the motor effect?
Current-carrying conductor in magnetic field experiences force
Force on current-carrying conductor formula
Force on current-carrying conductor formula
What is in ?
What is in ?
Magnetic flux density (tesla, T)
What is in ?
What is in ?
Current flowing through conductor (amperes, A)
What does Fleming's left-hand rule determine?
What does Fleming's left-hand rule determine?
Force direction on current-carrying conductors
Split-ring commutator function
Split-ring commutator function
Reverses current every half-turn for continuous rotation
Carbon brushes in DC motor
Carbon brushes in DC motor
Make electrical contact with rotating commutator
Force on moving charge in magnetic field
Force on moving charge in magnetic field
Direction of magnetic force on moving charge
Direction of magnetic force on moving charge
Perpendicular to both velocity and magnetic field
Magnetic force effect on particle speed
Magnetic force effect on particle speed
Changes direction but not speed
Circular path radius in magnetic field
Circular path radius in magnetic field
Stronger magnetic field effect on circular path radius
Stronger magnetic field effect on circular path radius
Smaller radius (tighter circular path)
Heavier particles effect on circular path
Heavier particles effect on circular path
Larger radius
Parallel currents (same direction)
Parallel currents (same direction)
Attract each other
Anti-parallel currents (opposite direction)
Anti-parallel currents (opposite direction)
Repel each other