Frequency = how many waves you get per sec
Period = how long each wave takes
Period = 1/frequency
        
             
        
        
        
Hey there! :D
Yes, indeed! Magnetic is a form of energy. It pushes or pulls to forces together. A lot of this energy is through waves, and opposite and like poles. 
I hope this helps!
~kaikers
        
             
        
        
        
Voltage = current * resistance
Voltage = 12 * 4
Voltage = 48V
        
                    
             
        
        
        
it would be a chain reaction and a wave