CIRCUIT ELECTRIC OSCILANT
Circuitul oscilant este alcătuit din elemente LC în cazul cînd rezistența acestor elemente se neglijează aceta este numit circuit oscilant ideal deoarece nu are loc pierderea energiei.In circuitele oscilante are loc transferul de energie a câmpului magnetic al condensatirului în câmp electric al bobinei.
In cazul circuitului LC ideal nu are loc amortizarea oscilatiilor.
Sa analizam experimentul
observam ca in dependență de capacitatea condensatorului frecvența oscilatiilor se modifică la fel ea se modifică si la modificarea inductantei bobinei deci: perioada oscilatiilor depinde de capacitate si inductanță:
aceasta poate fi determinată de formula lui Thomson care se deduce din relatia:
q=Qmsin(at)
unde a - pulsatia
Formula Thomson
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