376 



NINETEENTH CENTURY. 



FT. III. 



and the wire was fixed, while in B the wire was free to move 

 and the magnet was fixed. He now sent a current through 

 the wires, e, <?, and immediately in the cup A the magnet d 

 began to move round the fixed wire/, while in n the wire/' 

 moved round the fixed magnet, d'. Thus Faraday gave 

 fresh experimental proof of the close connection between 

 electricity and magnetism. He made the magnet go a 

 great way round the circle, but not spin quite round as 

 the wire had done. Ampere, however, who repeated the 

 experiment, succeeded in making the magnet spin round 

 and round like the hands of a clock. 



Electric Current produced by Means of a Magnet. 

 Faraday's mind was now full of the wonderful effect which 



FIG. 68. 



Faraday's Experiment on creating an Electric Current by means of a Magnet (Ganot). 



n, Coil of wire round a wooden cylinder connected at the two ends with b, a galvano- 

 meter, the needle of which shows directly a cunent passes through the wire; c, a 

 powerful magnet. 



electricity and magnetism produce on each other, and he 

 began to consider whether it might not be possible to reverse 

 Ampere's second experiment (p. 373), and instead of making 



