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SAP - Autorevision test S2
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Un filtre passe-bas du deuxième ordre a des composants R=100 , L = 10 mH et C = 1 µF. Quelle est sa fréquence de coupure ?
Donner la valeur en Hz avec 1 chiffre après la virgule, sans l'unité.
Knowing that R1 = R3 = 10 k, R2 = 100 k and R4 = 1 k. Calculate the voltage amplification of the circuit Av :
At the cutoff frequency of a second-order high-pass filter, the output voltage is:
In a second-order RLC low-pass filter, what is the impact of increasing R while keeping L and C constant?
A second-order notch filter with <math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><annotation encoding="application/x-tex">f_0 = 10</annotation></semantics></math>f0=10 kHz and bandwidth <math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><annotation encoding="application/x-tex">BW = 500</annotation></semantics></math>=500 Hz has a quality factor Q of:
The bandwidth of a second-order band-pass filter is determined by:
A second-order notch filter is designed to:
What is the function of a voltage follower circuit?
A second-order RLC band-pass filter has R = 100, <math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><annotation encoding="application/x-tex">L = 100mH</annotation></semantics></math>L = 100mH and C = 5μF. What is its resonant frequency f0<math xmlns="http://www.w3.org/1998/Math/MathML"></math>?
Give the value in Hz with 2 digits after the decimal point, without the unit.
What is the magnitude response in dB of a second-order low-pass passive filter with a Q=2 at twice the cutoff frequency?
Give the value without the unit.