generator effect

• the induction of potential difference (and current if in a complete circuit) in a wire which is moving relative to a magnetic field or experiencing a change in magnetic field
• can do it by moving a magnet in a coil wire OR moving a conductor wire in a magnetic field
• if magnet / coil is moved backwards and forwards it creates potential difference
• induced current always opposes the change that made it
• to increase size of induced potential difference

  • increases speed of movement
  • increases strength of the magnetic field