Main Desktop Lessons Desktop Review Desktop Lab Desktop Chart Desktop

        

104. A step-up transformer is used to convert 120.0 volt to 1200. volts.  If the primary coil has 500. turns, how many coils are in the secondary coil?
       
A. 50 Step up transformers have more turns in the secondary coil than the primary coil.  
      

Vprimary       Vsecondary 
------------- = ---------------
Nprimary       Nsecondary  

     

                       Vsecondary x Nprimary        1200. v x 500. turns 
Nsecondary  = ------------------------------ = ---------------------------- = 5000
                                 Vprimary                         120.0 volts 
B. 620
C. 1700
D. 5000

 

        

Hosted by www.Geocities.ws

1