Transformers - Calculations (7 total) 10 of 11 ' At - 2 At and therefore, Revie Ez N2 A transformer is intended to decrease the value of the alternating current from 500 amperes to 25 amperes. The primary coil contains 200 turns. Find the necessa number of turns NV2 in the secondary coil. If the coils have zero resistance (as we have assumed), then for each coil the terminal voltage will be equal to the induced emf. View Available Hint(s) We can then write V2 N2 N2 = 4000 Note that if /2 > N1, then V2 > Vi. In this case we have a step-up transformer. Conversely, if No