Laplace’s Apparatus, Mercury Free

It Is Used To Demonstrate The Effect Of Magnetic Field On A Current Carrying Conductor. A Metal Rod Is Mounted Vertically On A Moulded Plastic Case. A Permanent Magnet Is Fixed On A Vertically Moveable Platform Acrossmetal Rod. A Dc Current Of About 7A Induces Segnificant Displacement In The Movable Conductor. (Laplaces Apparatus, Mercury Free)