7) 300
Let number of turns on primary coil be = N1 = 1500
Let number of turns on secondary coil be = N2
Input voltage = V1 = 250V
Output voltage = V2 = P/I = (0.5×1000)/10 = 50 V
Formula:
N1 = N2
V1 V2
1500 = N2
250 50
N2 = 300
7) 300
Let number of turns on primary coil be = N1 = 1500
Let number of turns on secondary coil be = N2
Input voltage = V1 = 250V
Output voltage = V2 = P/I = (0.5×1000)/10 = 50 V
Formula:
N1 = N2
V1 V2
1500 = N2
250 50
N2 = 300