Electricity 



209 



of the loops between the poles of the magnet. Then, 

 to flow through the loops by the magnet the electricity 



FIG. 116. 



If the electricity passes through a lamp on its way around the circuit 

 the filament of the lamp glows. 



will have to go clear out through the long loop and back 

 again. While it is flowing through this long loop, we 

 can make it work. We can cut the long loop and attach 

 one broken end to one part of an electric lamp and the 

 other end to the other part, so that the electricity has 

 to flow through the lamp in order to get back to the 



FIG. 117. A dynamo in an electric light plant 



