| 
                  
            Electric pendulum           | 
              
          
                  
                        | 
                  
            Electric starter for a car’s motor           | 
              
          
                  
                        | 
                  
            Electric whirl           | 
              
          
                  
             ,             | 
                  
            Electric whirl with 7 spotted tubes           | 
              
          
                  
             ,  ,             | 
                  
            Electrically driven tuning fork           | 
              
          
                  
                        | 
                  
            Electrolytic apparatus           | 
              
          
                  
                        | 
                  
            Electromagnet           | 
              
          
                  
                        | 
                  
            Electromagnetic generator for melting metals           | 
              
          
                  
                        | 
                  
            Electromagnetic machine - Generator           | 
              
          
                  
                        | 
                  
            Electromagnetic machine - Generator           |