Minimum impedance at resonant frequency V DIN V Z Wo R √LC Voltage Source Voltage Source = 54 volts Resistor = 345 ohms ④ с Use the above formula chart to guide analysis of the following circuit: Capacitor = 330 microfarads Inductor = 120 milliHenrys L Imaginary Phasor diagram X₁ = @L R at Wo = Capacitor Z= |R² + (X₁ − Xc)² = R 1 √LC T Inductor Xc Resistor = Real 1 @C

Refer to the parallel resonant circuit of Figure 21-41. 2 μΑΖ0 220 pF L V R fp = 800 kHz BW = 25 kHz FIGURE 21-41 Suppose the circuit has a resonant frequency of 800 kHz and a bandwidth of 25 kHz. a. Determine the value of the inductor, L, in henries. b. Calculate the value of the resistance, R, in ohms. c. Find V, IL, and power, P, at resonance. d. Find the approximate values of the half-power frequencies, fi and f2. e. Determine the voltage across the circuit at the lower half-power frequency, fi, and show that the power dissipated by the resistor at this frequency is half the power dissipated at the resonant frequency. a. L = 180 µH b. R, = 28.9 kſN c. V = 57.9 mV Z0° Iz = 64.0 µAZ-90° P= 115 nW d. fi = 788 kHz f2 = 813 kHz e. V = 41.1 mVZ44.72° P = 58 nW © Cengage Leaming 2013

H: A 4V peak sine wave is fed to the circuit and a 1V peak sine wave results. Determine the gain in units of db. Va R1 ww Vb T C1 Gain Frequency

A Parallel Resonant ckt is given in the figure. Calculate Wo, W1, W2 , QF & Bw.