The motor effect

• What is the motor effect?

  The interaction of magnetic fields causing force
• What can you calculate using the motor effect?

  The size of the force generated
• What rule is used to determine the direction of the force in the motor effect?

  Fleming's left hand rule
• What happens when a wire carrying current is placed in a magnetic field?

  The wire experiences a force
• How does the direction of the force relate to the current and magnetic field?

  The force direction is determined by Fleming's rule
• What does the magnetic flux density measure?

  The strength of the magnetic field
• What are the three factors that affect the size of the force in the motor effect?

  Magnetic flux density, current, length
• What does Fleming's left hand rule help to determine?

  The direction of the motion (force)
• How do you position your fingers to use Fleming's left hand rule?

  Thumb, first finger, and second finger at right angles
• What happens if the conductor is parallel to the magnetic field?

  It will not experience a force
• What is the result when a conductor is at right angles to the magnetic field?

  It experiences a force