Question

A low-pass filter consists of a 111 Fcapacitor in series with a 158 resistor. The circuit is driven by an AC source with a peak voltage of 4.20 V Part A What is the crossover frequency f? Express your answer with the appropriate units. Value Units Request Answer Submit Part B What is Va when f = fe Express your answer with the appropriate units Vc Value Units Request Answer Submit Part C What is Va when f= f? Express your answer with the appropriate units. Vc Value Units Request Answer Submit Part D What is Va when f= 2f Express your answer with the appropriate units. HА ? Va Value Units Request Answer Submit

Answer 1

Answer? A) cross over when VR=ve frequency IR = 3 wo =) w = I so fo I R = 1 108x9.079 X100Hz = 9.079 410 H₂ = 9,07912 To STRC Answer!) I= avvrent in the circuit = 2= JR4X and X = 2 C Xe= 316.01 2= $(158) + (316-01)? 22 353.31 1 I= 4,200.0/18 A 353.3)

Ve= Ilc 10.0118 ) x (316.01) - 3.728 v Answers c) when f= fc a = √ R² + X2 z = √( 15852 + Xc2 and x = 1 2afcc X = 100 279.079)xin Xo = 1582 Vc = I xe & I= 4.20 -0.0188 A 158x52 Vc = 0.0188 x 158= 2.97 v asweyd) = afc xe = t fall an afec - 790 2= 5458²+ (7972 = 176.652 I= 4.20 = 0.0238 A 176.65 Ve=Ixc = 0.0238 x 79 I 1.89 v
use the above fomulae