What causes current to flow in the connected load on the secondary of a transformer?

Current flowing in the connected load on the secondary of a transformer is influenced by several factors, making the answer comprehensive.

The input voltage supplied to the primary winding of the transformer initiates the process. This voltage creates a magnetic field that induces a corresponding voltage in the secondary winding through electromagnetic induction.

Additionally, the primary resistance plays a role, albeit indirectly. While the primary resistance may cause some power loss and affect efficiency, it does not directly dictate current flow in the secondary. Instead, it can influence the overall operation of the transformer by affecting the primary current.

The load connected to the secondary is crucial as it determines the amount of current that will flow. The characteristics of this load, such as resistance (or impedance), dictate how much current is drawn from the secondary side when the induced voltage is present.

These three aspects combined ensure that current flows through the connected load on the secondary side, illustrating the interconnected nature of electromotive force, resistance, and load characteristics in electrical systems.