Transformer utilisation factor measures the merit of a rectifier circuit. Which ratio defines it?

1. A Option A: DC output power to the transformer volt-amp rating required by the secondary
2. B Option B: AC input power to the transformer volt-amp rating required by the primary
3. C Option C: DC output power to the transformer volt-amp rating required by the primary
4. D Option D: AC input power to the transformer volt-amp rating required by the secondary

Answer checked 11 October 2026 · How we write and check questions