motor effect

• Fleming left hand rule

  • thumb= movement(force)
  • first finger= magnetic field
  • second finger= current direction
• to increase force

  • increase current
  • use stronger magnet
• reverse current

  • reverse current direction
  • reverse magnetic poles
• force on conductor (N) = magnetic flux density(Tesla, T) x current(A) x length of wire(m)
• current carrying conductor placed near magnet experiences a force that an equal and opposite force acts on magnet
• What is this: A  carrying wire in the presence of a magnetic field will experience a force

  Motor effect