. What are the two main disadvantages of an LC capacitor  filter?

1 Answer

Answer :

Cost of the inductor and size of the inductor.

Related questions

Description : What are the two main disadvantages of an LC capacitor filter?

Last Answer : Cost and size of the inductor.

Description : In an LC choke-input filter, what prevents the rapid charging of the capacitor?

Last Answer : The CEMF of the inductor

Description : In an LC choke-input filter, what prevents the rapid charging of the capacitor?

Last Answer : Counter electro-motive force of the inductor.

Description : State the advantages and disadvantages of series inductor and shunt capacitor filter.

Last Answer : Advantages of series inductor filter 1. It has low ripple factor at heavy load currents (i.e. low load resistance) 2. It has no surge current through the diode. 3. It reduces the ripple in the DC ... . 3. It has low output voltages for heavy loads. 4. Ripple factor is dependent on the load.

Description : In an `LC` circuit shows in Fig. `C = 1 F`, `L = 4 H`. At time `t = 0`, charge in the capacitor is `4 C` and it is decreasing at the rate of `sqrt(5)

Last Answer : In an `LC` circuit shows in Fig. `C = 1 F`, `L = 4 H`. At time `t = 0`, charge in the capacitor is `4 ... ))` C. `2tan^(-1)((2)/(3)) D. None of these

Description : In an `LC` circuit shows in Fig. `C = 1 F`, `L = 4 H`. At time `t = 0`, charge in the capacitor is `4 C` and it is decreasing at the rate of `sqrt(5)

Last Answer : In an `LC` circuit shows in Fig. `C = 1 F`, `L = 4 H`. At time `t = 0`, charge in the capacitor is `4 ... statement. A. 6 C B. 8 C C. 10 C D. 12 C

Description : A capacitor in an LC oscillation has a maximum potential difference of 1.5 and a maximum energy `360muJ`. At a certain instant `t=t_(0)`, the potentia

Last Answer : A capacitor in an LC oscillation has a maximum potential difference of 1.5 and a maximum energy `360muJ`. ... is 5 volt D. The value of V is 10volt

Description : What determines the rate of discharge of the capacitor in a filter circuit?

Last Answer : Value of capacitance and load resistance.

Description : In a capacitor filter, is the capacitor in series or in parallel with the load?

Last Answer : Parallel.

Description : . What determines the rate of discharge of the capacitor in a filter circuit?

Last Answer : Value of capacitance and load resistance

Description : In a capacitor filter, is the capacitor in series or parallel with the load?

Last Answer : Parallel.

Description : Draw and describe circuit diagram of centre tapped rectifier with LC filter along with its input and output waveforms.

Last Answer : Explanation: A centre- tap full wave rectifier drive produces the rectified voltage and it drives the LC filter. We know that the series inductor filter is preferred for low values of load resistance ( ... load RL. The output voltage waveforms are similar to that as shown in figure above.  

Description : State any four advantages of LC filter.

Last Answer : 1. The choke input (LC) filter has a high output D.C voltage. 2. It has no loading effect on the rectifier and power transformer.  3. The diode does not have to carry surge currents.  ... effect on the rectifier and power transformer.  7. It has better voltage regulation than that of π filter.

Description : Compare RC and LC filter.

Last Answer : RC filters  LC filters The RC filter is only useful for small load currents. The LC filters are useful for heavy load currents. More power dissipated in RC filter. Less power ... RC is fine for filtering low power signals. LC is fine for filtering high power signals.

Description : Sketch circuit diagram of bridge rectifier with LC filter. State function of each component.

Last Answer :  Circuit diagram :  Components and its function: :  1. Transformer- An electrical device which transfers electrical energy from one electric circuit to other, without changing the frequency. The ... DC components.  4. Capacitor- It bypasses AC components if any and gives DC to load. 

Description : The ripple factor in an LC filter.   (A) Increases with the load current (B) Increases with the load resistance (C) Remains constant with the load current (D) Has the lowest value

Last Answer : The ripple factor in an LC filter. Has the lowest value

Description : How many tuned parallel LC circuits are shown in this schematic?

Last Answer : Four.

Description : Can a parallel LC circuit be used as the frequency determining network for an rf amplifier?

Last Answer : Yes.

Description : When is line current minimum in a parallel-LC circuit?

Last Answer : At the resonant frequency.

Description : Draw and explain: bridge rectifier with shunt capacitor filter.

Last Answer : Operation of bridge rectifier with capacitor filter is explained in different intervals with the help of the following wave form. Operation in interval at 0 to A: ... filter is very close to theideal dc voltage waveform as most of the ripple is removed from rectified output.

Description : Draw the circuit diagram of shunt capacitor filter along with full wave rectifier. Draw the waveform of full wave rectifier output and shunt capacitor filter output.

Last Answer : Fig: Shunt capacitor filter along with full wave rectifier Fig: Waveform of full wave rectifier output and shunt capacitor filter output.

Description : With help of circuit diagram and waveform, explain shunt capacitor filter.

Last Answer : Circuit diagram and Waveform: OR Explanation: A filter circuit is one which removes the ac component present in the rectified output and allows the dc component to reach the ... which allows ac components. The remaining dc components present in the signal are collected at the output. 

Description : If the output filter capacitor in a power supply actually had a value twice its stated value, which of the following symptoms would be found?   a. The output voltage would be doubled and a small ... would be greater than expected.  d. The output and ripple voltage would be less than expected.

Last Answer : b. The ripple voltage would be half of what is expected and a small increase in the output voltage would be detected. 

Description : When measuring strain, ballast circuit use a capacitor to act as a high pass filter. This is done when:  a) Static strain are being measured b) Dynamic strain are being measured c) Both Static and dynamic strain are being measured d) None of the above

Last Answer : When measuring strain, ballast circuit use a capacitor to act as a high pass filter. This is done when: Dynamic strain are being measured

Description : Name two types of power losses associated with a capacitor.

Last Answer : a. Hysteresis b. Dielectric leakage

Description : What is the relative length of the time constant for the diode capacitor combination in a damper (long or short)?

Last Answer : Short time constant.

Description : How does a capacitor and an inductor react to (a) low frequency and (b) high frequency?

Last Answer : At low-frequency, a capacitor acts as an open and an inductor acts as a short. At high-frequency, a capacitor acts as a short and an inductor acts as an open.

Description : What is the term for the number of times per second that tank circuit energy is either stored in the inductor or capacitor?

Last Answer : Natural frequency or resonant frequency (f r).

Description : When the capacitor is completely discharged, where is the energy of the tank circuit stored?

Last Answer : Inductor magnetic field

Description : If the inductor and capacitor values are increased, what happens to the resonant frequency?

Last Answer : Decreases.

Description : In an a.c. circuit that contains both an inductor and a capacitor, what term is used for the difference between the individual reactances?

Last Answer : Resultant reactance.

Description : What is the term used to refer to the losses which can be traced to the dielectric of a capacitor?

Last Answer : Power losses.

Description : What is the purpose of the synchro capacitor?

Last Answer : To improve overall synchro system accuracy by reducing stator currents.

Description : If you increase the value of the capacitor, will the XC increase or decrease? Why?

Last Answer : It will decrease. Capacitance is inversely proportional to:

Description : If you increase the value of the capacitor will the XC increase or decrease? Why?

Last Answer : Decrease-Capacitance is inversely proportional to XC.

Description : In a circuit using grid-leak biasing, the coupling capacitor (Cc) chargcharge path?

Last Answer : rkg, the cathode to grid resistance.

Description : What is the term for the opposition that a capacitor presents to ac?

Last Answer : Capacitive reactance.

Description : What effect does the capacitor have on a changing voltage?

Last Answer : The capacitor opposes any change in voltage.

Description : What is the discharge rate for the capacitor in a pcm converter?

Last Answer : It will discharge to one-half its value between pulses.

Description : What is the time constant of the resistor and capacitor in a peak detector for pam?

Last Answer : At least 10 times the interpulse period.

Description : A circuit is to be designed in which a capacitor must charge to 40 percent of the maximum charging voltage in 200 microseconds. The resistor to be used has a resistance of 40,000 ohms. What size capacitor must be used?

Last Answer : 0.1 microfarads 40% from the graph = 0.5

Description : What is the RC time constant of a series RC circuit that contains a 12-megohm resistor and a 12-microfarad capacitor?

Last Answer : 144 seconds (t=R x C)

Description : What is the voltage drop across the resistor in an RC charging circuit when the charge on the capacitor is equal to the battery voltage?

Last Answer : Zero.

Description : At what instant does the greatest voltage appear across the resistor in a series RC circuit when the capacitor is charging?

Last Answer : At the instant of the initiation of the action.

Description : state what happens to the electrons in a capacitor circuit when (a) the capacitor is charging and (b) the capacitor is discharging.

Last Answer : a. When the capacitor is charging, electrons accumulate on the negative plate and leave the positive plate until the charge on the capacitor is equal to the battery voltage. b. When the ... the negatively charged plate to the positively charged plate until the charge on each plate is neutral.

Description : a. Define the term "working voltage" of a capacitor. b. What should be the working voltage of a capacitor in a circuit that is operating at 600 volts?

Last Answer : a. It is the maximum voltage the capacitor can work without risk of damage. b. 900 volts.

Description : State three factors that affect the capacitance of a capacitor.

Last Answer : a. The area of the plates. b. The distance between the plates. c. The dielectric constant of the material between the plates.

Description : What are the basic parts of a capacitor?

Last Answer : Two pieces of conducting material separated by an insulator.

Description : State three factors that affect the capacitance of a capacitor.

Last Answer : a. The area of the plates. b. The distance between the plates. c. The dielectric constant of the material between the plates.

Description : What are the basic parts of a capacitor?

Last Answer : Two pieces of conducting material separated by an insulator.