Which electrical principle describes the result of a connected load on the secondary of a transformer?

The principle that accurately describes the result of a connected load on the secondary of a transformer is related to current flow. When a load is connected to the secondary side of a transformer, it draws a specific amount of current based on its impedance and the voltage provided. This relationship enables the transformer to supply the load with the necessary electrical energy.

In a transformer, the current flowing through the secondary winding is proportional to the load connected. This means that as the load increases, more current is drawn, and as the load decreases, less current is drawn. This principle is fundamental in understanding how transformers operate under varying load conditions and how they maintain efficiency while delivering power.

Other principles in the options, such as Ohm's Law, pertain to the relationship between voltage, current, and resistance in a circuit but do not specifically address the behavior of a transformer under load. Load regulation also relates but focuses on the ability of the transformer to maintain a constant output voltage as the load changes, which is more about performance characteristics rather than the immediate effect of the connected load leading to current flow. Impulse stability relates to system stability in dynamic conditions, which is not directly pertinent to the basic operational principle of a transformer with respect to load.