Q.
The primary winding of a transformer has 500 turns and its secondary has 5000 turns. If primary is connected to a.c. supply of 20V and 50Hz, then secondary will have an output of
Given :
Number of turns in the primary N1=500
Number of turns in the secondary N2=5000
Input voltage V1=20V
Output voltage V2=?
We know that ∣V2∣=N1N2V1 =5005000×20=200V
As in a transfomer the output frequency of the ac supply remains the same as that of the input supply, the frequency of the output current will be 50Hz.