generator effect

• describe generator effect


  wire moving relative to magnetic field or experience change in magnetic field will induce potential difference that induces current if closed circuit
• give factors affecting size of induced pd and current

  speed of movement, strength of magnets and number of turns in coil
• describe alternator 


  uses generator effect to induce alternating current through slip rings and brushes
• describe affect of slip rings and brushes

  do not switch positive and negative connections every half turn
• describe dynamos use generator effect to induce direct current through sl
• describe dynamos 


  use generator effect to induce direct current through split ring commutator
• describe affect of split ring commutator

  switch positive and negative connections every half turn
• describe microphone 


  use generator effect to convert sound waves into movement of wire for induced current