If the illustrated device in figure "B" has a step-up ratio of 10 to 1 what voltage would be measured at the secondary shortly after the primary of the device is connected to 110 volts DC and the primary current stabilized with a current of 12 amps? EL-0055

Correct Answer: Option D — 0 volts

Transformers operate strictly on electromagnetic induction requiring alternating current (AC) to produce a changing magnetic flux. Connecting the primary winding to a Direct Current (DC) source creates a steady-state magnetic field after current stabilizes, inducing zero secondary voltage once transient effects cease.