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Forces and magnetic fields in motors

Magnetism and electromagnetism • The motor effect

Key concepts

What you'll likely be quizzed about

  • Magnetic fields are regions around a magnet where magnetic forces can be detected.
  • These fields exist due to the movement of electric charges, with the lines of force representing the strength and direction of the field.
  • The shape of these fields can be visualized using iron filings or compasses, which align along the lines of the magnetic field.

Flashcards

Test your knowledge with interactive flashcards

What does Fleming's Left-Hand Rule describe?

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Fleming's Left-Hand Rule predicts the direction of force on a current-carrying conductor in a magnetic field.

Key notes

Important points to keep in mind

Magnetic field lines indicate the direction of force.

Current flow direction affects motion direction in motors.

Fleming's Left-Hand Rule is crucial for predicting motion.

The strength of a magnetic field varies with distance from the magnet.

Electric motors convert electrical energy into mechanical energy.

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