A certain transformer has 200 turns in the primary winding, 50 turns in the secondary winding and 120 volts applied to the primary. What is the voltage across the secondary?

• A. 30 Volts
• B. 120 Volts
• C. 480 Volts
• D. 60 Volts

Answer: (A)

For transformer, V2/V1 = N2/N1
V2/120 = 50/200
V2 = 30 V