Flemings left hand rule (HT only)

• What is Fleming's left-hand rule used for?

  To determine the direction of force
• What does Fleming's left-hand rule indicate when a conductor carries a current in a magnetic field?

  It shows the direction of the motor effect
• What does the first finger represent in Fleming's left-hand rule?

  The magnetic field direction
• What does the second finger represent in Fleming's left-hand rule?

  The direction of current
• What does the thumb represent in Fleming's left-hand rule?

  The direction of force
• What factors affect the size of the force on the conductor?

  The amount of current, magnetic field strength, and length of conductor
• How does the angle of the conductor affect the force generated?

  The conductor must be at right angles for maximum force
• What is the formula for calculating the force on a conductor in a magnetic field?

  $F =$$B \times I \times L$
• What does the variable F represent in the formula $F =$$B \times I \times L$?


  The force in newtons
• What does the variable B represent in the formula $F =$$B \times I \times L$?


  The magnetic flux density
• What does the variable I represent in the formula $F =$$B \times I \times L$?


  The current in amps
• What does the variable L represent in the formula $F =$$B \times I \times L$?


  The length of the conductor
• What is the relationship between the force and the angle of the conductor to the magnetic field?

  The force is maximized at right angles
• How does increasing the current affect the force on the conductor?

  It increases the force proportionally
• How does increasing the magnetic field strength affect the force on the conductor?

  It increases the force proportionally
• How does the length of the conductor affect the force generated?

  Longer conductors produce greater force
• What is the significance of the right angle in Fleming's left-hand rule?

  It ensures maximum force generation
• If a conductor is at an angle to the magnetic field, how would you calculate the effective force?

  Use the sine of the angle in calculations
• What is the unit of magnetic flux density?

  Tesla (T)
• What is the unit of force in the formula $F =$$B \times I \times L$?


  Newton (N)
• What is the unit of current in the formula $F =$$B \times I \times L$?


  Ampere (A)
• What is the unit of length in the formula $F =$$B \times I \times L$?


  Meter (m)
• Why must the conductor be at right angles to the magnetic field for maximum force?

  To maximize the interaction between current and field
• How does the direction of current affect the direction of force?

  Changing current direction reverses force direction
• If the magnetic field strength is doubled, what happens to the force?

  The force also doubles
• If the length of the conductor is halved, what happens to the force?

  The force is also halved
• What is the effect of increasing the magnetic field strength on the force exerted on the conductor?

  It increases the force exerted on the conductor
• How does the angle of the conductor to the magnetic field affect the force produced?

  Force is maximized at 90 degrees
• What happens to the force if the current is increased while keeping other factors constant?

  The force increases proportionally
• What is the relationship between the direction of the magnetic field and the direction of the force?

  They are perpendicular to each other
• What is the significance of the thumb in Fleming's left-hand rule?

  It indicates the direction of force
• What is the significance of the first finger in Fleming's left-hand rule?

  It indicates the direction of magnetic field
• What is the significance of the second finger in Fleming's left-hand rule?

  It indicates the direction of current
• How does the length of the conductor affect the force generated?

  Longer conductors produce greater force
• What happens to the force if the angle of the conductor is changed?

  Force changes based on the angle
• If a conductor is placed parallel to the magnetic field, what happens to the force?

  The force is zero
• What is the role of the magnetic field in Fleming's left-hand rule?

  It interacts with the current to produce force
• How does the direction of the magnetic field relate to the direction of the force?

  They are perpendicular to each other
• If the magnetic field is reversed, what happens to the force direction?

  The force direction also reverses
• What is the significance of the right angle in Fleming's left-hand rule?

  It ensures maximum force generation