For a transformer with primary 2400 V and secondary 4160 V, if the primary is supplied with 2400 V, the secondary voltage is:

For a transformer with primary 2400 V and secondary 4160 V, if the primary is supplied with 2400 V, the secondary voltage is:

• A. 120 V
• B. 240 V
• C. 2400 V
• D. 4160 V

Answer: (D)

Voltage scales with the turns ratio in an ideal transformer. The secondary voltage equals the primary voltage multiplied by the turns ratio (Ns/Np). For this transformer, the ratio is 4160/2400 ≈ 1.733. So applying 2400 V to the primary yields about 4160 V on the secondary. In real operation, small losses and regulation can cause minor differences, but the nominal secondary voltage follows the turns ratio.

Voltage scales with the turns ratio in an ideal transformer. The secondary voltage equals the primary voltage multiplied by the turns ratio (Ns/Np). For this transformer, the ratio is 4160/2400 ≈ 1.733. So applying 2400 V to the primary yields about 4160 V on the secondary. In real operation, small losses and regulation can cause minor differences, but the nominal secondary voltage follows the turns ratio.