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Heating of the choke is a very important parameter that determines the allowable load of the choke, and, ultimately, its service life. The amount of heating and overheating depends on many factors: the frequency of the voltage and current, their type, the quality of the core and winding materials, the magnitude of the losses in them, the ambient temperature, the choke device. The maximum value of the heating of the choke depends primarily on the insulation material of the winding wire and, as a rule, is 105 - 130 ° C. Good day to all! In the last article I began to talk about the power losses during the operation of the choke, in particular, the power that is released in the winding of the choke and the influence on it of the size of the conductor from which the winding is made, as well as the parameters of the winding, were considered. Another significant factor in power loss is the processes occurring in the core of the choke, such as eddy currents and magnetization reversal of ferromagnets. The integrand shows the dependence of the magnetic induction B on the intensity H of the magnetic field in the core, integrating that we get the so-called coefficient of specific volume magnetic losses