sekundäärikäämin

Sekundäärikäämi, often translated as secondary coil, refers to the coil of wire in a transformer that is connected to the load. In a typical transformer, there are two coils: a primary coil and a secondary coil. The primary coil is connected to the input voltage source, and the secondary coil is where the output voltage is induced. The relationship between the number of turns in the primary coil (Np) and the number of turns in the secondary coil (Ns) determines the voltage transformation ratio. If Ns is greater than Np, the voltage is stepped up; if Ns is less than Np, the voltage is stepped down. The energy transfer from the primary coil to the secondary coil occurs through a changing magnetic field. The alternating current in the primary coil creates a fluctuating magnetic flux in the transformer's core, which then induces an electromotive force (EMF) in the secondary coil. The output voltage and current in the secondary coil are inversely proportional to the turns ratio, assuming an ideal transformer with no energy losses. In practical applications, the secondary coil is crucial for delivering power to electronic devices, power grids, and various electrical systems. The impedance of the load connected to the secondary coil also influences the current drawn from the primary side due to the transformer action.