The cutoff frequency, fo, for a low pass filter is given by the following equation: 1 2TRC The components used in the design of the filter are: C = 0.02 µF ± 2.6% and R = 1.5 kl + 0.5%. Calculate the cutoff frequency, fe, and its relative limiting eror in percentage form.
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- In Figure P33.71, find the rms current delivered by the 45.0-V (rms) power supply when (a) the frequency is very large and (b) the frequency is very small.At s1iat frequency is the reactance of a 20F capacitor equal to that of a 10-mH inductor?A 700-pF capacitor is connected across an ac source with a voltage amplitude of 160 V and a frequency of 20 kHz. (a) Determine the capacitive reactance of the capacitor and the amplitude of the output current of the source. (b) If the frequency is changed to 60 Hz while keeping the voltage amplitude at 160 V, what are the capacitive reactance and the current amplitude?
- In an oscillating LC circuit, the maximum charge on the capacitor is qm. Determine the charge on the capacitor and the current through the inductor den energy is shared equally between the electric and magnetic fields. Express your answer in terms of qm, L, and C.A sinusoidal voltage Δv = (80.0 V) sin (150t) is applied to aseries RLC circuit with L = 80.0 mH, C = 125.0 µF, and R =40.0 Ω. (a) What is the impedance of the circuit? (b) What isthe maximum current in the circuit?Problem 4: An RL low-pass filter is shown in the figure. Its purpose is to attenuate higher frequencies while allowing lower frequencies to pass through. A 930-Hz sine-wave signal with rms amplitude of Vms = 1.4 V is fed into the filter. The values of the components are R= 0.62 Q and L = 140 uH. Out L R rms Part (a) Find the output rms voltage, in volts. Vout = sin() cos() tan() 8 9 HOME cotan() asin() acos() 4 5 6 atan() acotan() sinh() 2 | 3 cosh() tanh() cotanh() END ODegrees O Radians VOl BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Part (b) By what angle, in degrees, does the output voltage lag the input voltage?
- A sinusoldal voltage Av 42.5 sin(100r), where Av is in volts and t is in seconds, is applied to a series RLC circuit with L- 180 mH, C- 99.0 u, and R- 59.0 0. (a) What is the impedance (in 0) of the circuit? 109 What is the angular frequency of the source? Q (b) What is the maximum current (in A)? (c) Determine the numerical value for e (in rad/s) in the equation / sin(at - ). rad/s (d) Determine the numerical value for (in rad) in the equation a sin(at ). rad (e) What If? For what value of the inductance (in H) in the circuit would the current lag the voitage by the same angle as that found in part (d)? () What would be the maximum current (in A) in the circuit in this case?A capacitor C is connected in series with a 40 S2 resistor across a supply of frequency Problem 14. 60 Hz. A current of 3 A flows and the circuit impedance is 50 2. Calculate (a) the value of capacitance, C, (b) the supply voltage, (c) the phase angle between the supply voltage and current, (d) the p.d. across the resistor, and (e) the p.d. across the capacitor. Draw the phasor diagram.Design a П-section or CLC filter for a full wave rectifier with the values of output dc voltage of 10 V and a load current of 150 mA and to have a ripple factor of 1 %.
- In a certain series RLC circuit, I rms = 9.00 A, ΔV rms = 180 V, and the current leads the voltage by 37.0°. (a) What is the total resistance of the circuit? (b) Calculate the reactance of the circuit (XL - XC).) The RC circuit below is hooked up to a source that provides an emf of e(t) = Vocos(wt), where Vo = 40 V and w = 400 rad/s. R = 100 N, C = 8 x10-6 F. (a) (2 pts) Find the circuit's impedance Z and maximum current lo. (b) (2 pts) What is the maximum voltage read out over the capacitor? (c) (2 pts) What is the phase difference o between the source emf and the current?A square wave is a cyclic pattern that has a constant absolute value, but alternates between maximally positive and maximally negative. In the ideal case, the alternation is instantaneous. If a power source set to "square wave" provides an emf with a maximum of 10 V, what is the rms emf of the power source? Give your answer in units of V, and assume the square wave is ideal.