Magnet and Solenoid

 

Magnet and Solenoid demo picture

  • Purpose: Demonstrate that changing magnetic flux induces emf.
  • Push magnet into solenoid and galvanometer needle deflects, indicating induced emf; pull magnet out of solenoid and galvanometer needle deflects the opposite way.

Location

  • Solenoid and magnet:L01, section B2
  • Galvanometer: L35, section F3

 

 

Wire loop in B-field

Wire loop in B-field demo picture

  • Purpose: Illustrate that a changing magnetic flux induces an emf.
  • Use a B-field indicator, or compass, to show direction of B-field around magnet; connect coil of wire to galvanometer and move coil in and out of B-field to deflect galvanometer needle.
  • Location: magnet and coil located in L01; galvanometers are in L35, shelf F3, in plastic bin.