August 2022 1 16 Report

Ток в первичной обмотке трансформатора 0,5 А, напряжение на ее концах 220 В. Ток во вторичной обмотке 11 А, напряжение на ее концах 9,5 В, Определите коэффициент полезного действия трансформатора.

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