An air-cored choke is designed to have an inductance of 20H when operating at a flux density of I Wb/m²: the corresponding relative permeability of iron core is 4000. Determine the number of turns in the winding: given that the flux path has a mean length of 22 cm in the iron core and I mm in air gap and that its cross-section is 10 cm².

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Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.