A single-phase transformer has a turns ratio of 20,000/5,000. If a DC voltage of 50 V is applied to the primary winding, what will be the voltage of the secondary winding.

Sneaky question.

The secondary voltage will be zero.

Secondary voltage is the result of CHANGES in the primary voltage. That means the primary is energized with AC. The transformer in this question is energized with DC, which doesn't change. So there is no secondary voltage, this transformer doesn't work, and what you get out of it is: Smoke !

he . if i may ask what i your question exactly?

explanation:

explanation:

as the height from which the ruler was dropped increased, the speed of the ruler at ryan's hand increased.