October 2021 0 9 Report
в электрической цепи U=120 В, Uаб=75 В; R1=9 Ом и R2=R3. Определить падение напряжения U1 U2 U3 а также сопротивление R2 (ответы : 45 В ; 37,5 В; 37,5 В; 7,5 ом)
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