Modelová Otázka ID 3473 - 
Jakým způsobem jsou okamžitý proud a napětí oscilačního LC obvodu závislé na čase?
Správná odpověď je: D
V oscilačním LC obvodu složeném z cívky o indukčnosti L a kondenzátoru o kapacitě C dochází k cyklickým přeměnám energie elektrického pole nabitého kondenzátoru v energii magnetického pole cívky a naopak. Vzhledem k vlastnostem cívky a kondenzátoru existuje mezi napětím a proudem v obvodu fázový rozdíl. Jak napětí, tak elektrický proud jsou však v LC obvodu harmonicky se měnící veličiny.
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