sekundaarikäämällä
Sekundaarikäämällä refers to the secondary winding of a transformer. A transformer is an electrical device that transfers energy between two or more circuits through electromagnetic induction. It consists of at least two coils of wire, known as windings. The primary winding is connected to the input voltage, and the secondary winding is connected to the output load. The number of turns in the primary and secondary windings determines the voltage transformation ratio. If the secondary winding has more turns than the primary, it is a step-up transformer, increasing the voltage. Conversely, if the secondary winding has fewer turns, it is a step-down transformer, decreasing the voltage. The alternating current in the primary winding creates a changing magnetic flux in the transformer's core, which in turn induces an alternating voltage in the secondary winding. The purpose of the secondary winding is to deliver the transformed electrical power to the connected device or circuit. The efficiency of a transformer is generally high, with most of the energy transferred from the primary to the secondary winding.