Alimentând o bobină cu tensiunea continuă U=120V, prin
circuit se stabilește un curent I=10A. Dacă la bornele aceleiași
bobine se aplică o tensiune alternativă cu valoarea efectivă U1 =U și frecvența ϑ=50Hz, valoarea efectivă a curentului electric prin circuit este I1 =6A. Să se calculeze:
a) rezistența și inductanța bobinei;
b) reactanța inductivă și impedanța bobinei pentru frecvența de lucru ϑ=50Hz.
Answers: 3
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Alimentând o bobină cu tensiunea continuă U=120V, prin
circuit se stabilește un curent I=10A. Dacă...
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