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Se da un filtru trece jos (FTJ) ideal, care are frecventa de taiere 8 kHz. La i...

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Se da un filtru trece jos (FTJ) ideal, care are frecventa de taiere 8 kHz.

La intrarea filtrului se aplica un semnal sinusoidal de frecventa 16 kHz si amplitudine 7 V.

Un FTJ ideal are modulul functiei de transfer |H(f)|:

-|H(f)|=1 pentru frecvente in domeniul de la 0 Hz pana la frecventa de taiere 

-|H(f)|=0 pentru frecvente mai mari decat frecventa de taiere

Alegeti raspunsul corect.

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