When is a second RC filter stage used?

Question

When is a second RC filter stage used?

asked Aug 20, 2021 by anonymous

1 Answer

Related questions

When is a second RC filter stage used?

Description : When is a second RC filter stage used?

Last Answer : When ripple must be held at an absolute minimum

Is an RC filter used when a large current or a small current demand is required?

Description : Is an RC filter used when a large current or a small current demand is required?

Last Answer : Small.

Filtrate flow rate in case of a rotary drum vacuum filter (in which Rm < < Rc ) is proportional to __________ and the cycle time (where, μ = filtrate viscosity Rm = filter medium resistance Rc = cake resistance). (A) √μ (B) 1/√μ (C) 1/μ (D) 1/μ

Description : Filtrate flow rate in case of a rotary drum vacuum filter (in which Rm < < Rc ) is proportional to __________ and the cycle time (where, μ = filtrate viscosity Rm = filter medium resistance Rc = cake resistance). (A) √μ (B) 1/√μ (C) 1/μ (D) 1/μ

Last Answer : (B) 1/√μ

___ has a series RC combination in one arm and a parallel RC combination in the adjoining arm and used as a notch filter in harmonic distortion analyzer.

Description : ___ has a series RC combination in one arm and a parallel RC combination in the adjoining arm and used as a notch filter in harmonic distortion analyzer.

Last Answer : wein bridge

Compare RC and LC 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.

In a sawtooth generator, why is the transistor turned on for a longer time than the discharge time of the RC network?

Description : In a sawtooth generator, why is the transistor turned on for a longer time than the discharge time of the RC network?

Last Answer : To allow the capacitor time to discharge.

What is the difference between an RC and an RL differentiator in terms of where the output is developed?

Description : What is the difference between an RC and an RL differentiator in terms of where the output is developed? is developed?

Last Answer : . In an RC circuit the output is taken across the resistor. In the RL circuit the output is taken across the inductor.

Which RC network provides better frequency stability, three-section or four-section?

Description : Which RC network provides better frequency stability, three-section or four-section?

Last Answer : Four-section.

Should the capacitance of the photodetector be kept small or large to prevent the RC time constant from limiting the response time?

Description : Should the capacitance of the photodetector be kept small or large to prevent the RC time constant from limiting the response time?

Last Answer : Small

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

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)

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?

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.

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

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.

Draw circuit diagram of two stage RC coupled amplifier using BJT

Description : Draw circuit diagram of two stage RC coupled amplifier using BJT

Last Answer : BJT - To amplify input signal. R1 & R2 = Biasing resistor to provide DC biasing voltage RE = Emitter resistor to control gain RL = Load resistor to carry load current Cin = Cout = Coupling capacitors to block DC CE = emitter bypass resistor

Draw the single stage RC coupled amplifier circuit and explain its’s operation.

Description : Draw the single stage RC coupled amplifier circuit and explain its’s operation.

Last Answer : Operation:- The capacitors C1 and C2 are called as the coupling capacitors. As the load resistor RL (not shown in the diagram) is coupled to the amplifier through the coupling capacitor ... connected in the common emitter (CE) configuration. Therefore, this amplifier is called CE amplifier.

What type filter is used to block the passage of current for a narrow band of frequencies, while allowing current to flow at all frequencies above or below this band?

Description : What type filter is used to block the passage of current for a narrow band of frequencies, while allowing current to flow at all frequencies above or below this band?

Last Answer : . Band-reject.

What type filter is used to allow a narrow band of frequencies to pass through a circuit and attenuate all other frequencies above or below the desired band?

Description : What type filter is used to allow a narrow band of frequencies to pass through a circuit and attenuate all other frequencies above or below the desired band?

Last Answer : Bandpass.

What term is used to describe the frequency at which the filter circuit changes from the point of rejecting the unwanted frequencies to the point of passing the desired frequencies?

Description : What term is used to describe the frequency at which the filter circuit changes from the point of rejecting the unwanted frequencies to the point of passing the desired frequencies?

Last Answer : Frequency cutoff (fco).

What is the filter called that passes low frequencies but rejects or attenuates high frequencies?

Description : What is the filter called that passes low frequencies but rejects or attenuates high frequencies?

Last Answer : Low-pass filter, high-frequency discriminator or high-frequency attenuator.

What is the filter called in which the low frequencies do not produce a useful voltage?

Description : What is the filter called in which the low frequencies do not produce a useful voltage?

Last Answer : High-pass filter, low-frequency discriminator, or low-frequency attenuator.

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

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

Last Answer : Cost and size of the inductor.

What is the most commonly used filter today?

Description : What is the most commonly used filter today?

Last Answer : LC capacitor-input filter.

Why is the use of large value capacitors in filter circuits discouraged?

Description : Why is the use of large value capacitors in filter circuits discouraged?

Last Answer : Expense

Is a full-wave rectifier output easier to filter than that of a half-wave rectifier?

Description : Is a full-wave rectifier output easier to filter than that of a half-wave rectifier?

Last Answer : Yes.

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

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

Last Answer : Value of capacitance and load resistance.

Does a filter circuit increase or decrease the average output voltage?

Description : Does a filter circuit increase or decrease the average output voltage?

Last Answer : A filter circuit increases the average output voltage

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

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

Last Answer : Parallel.

What is the most basic type of filter?

Description : What is the most basic type of filter?

Last Answer : The capacitor filter.

What is the purpose of the filter section?

Description : What is the purpose of the filter section?

Last Answer : To change pulsating dc to pure dc.

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

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

Last Answer : The CEMF of the inductor

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

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

Last Answer : Cost of the inductor and size of the inductor.

What is the most commonly used filter in use today?

Description : What is the most commonly used filter in use today?

Last Answer : LC capacitor-input filter.

Why is the use of large value capacitors in filter circuits discouraged?

Description : Why is the use of large value capacitors in filter circuits discouraged?

Last Answer : Expense

If the inductance of a choke-input filter is increased, will the output ripple voltage amplitude (Er) increase or decrease?

Description : If the inductance of a choke-input filter is increased, will the output ripple voltage amplitude (Er) increase or decrease?

Last Answer : Decrease.

What is the value usually chosen for a filter choke?

Description : What is the value usually chosen for a filter choke?

Last Answer : 1 to 20 henries.

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

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

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

Is a full-wave rectifier output easier to filter than that of a half-wave rectifier?

Description : Is a full-wave rectifier output easier to filter than that of a half-wave rectifier?

Last Answer : Yes.

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

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

Last Answer : Value of capacitance and load resistance

Does a filter circuit increase or decrease the average output voltage?

Description : Does a filter circuit increase or decrease the average output voltage?

Last Answer : Increase.

Is better filtering achieved at a high frequency or at a low frequency at the input of the filter?

Description : Is better filtering achieved at a high frequency or at a low frequency at the input of the filter?

Last Answer : High

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

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

Last Answer : Parallel.

What is the most basic type of filter?

Description : What is the most basic type of filter?

Last Answer : Capacitor.

What is the function of a crystal filter in a receiver?

Description : What is the function of a crystal filter in a receiver?

Last Answer : It is used to achieve maximum selectivity.

A mode filter is a device that attenuates specific modes propagating in the core of an optical fiber. What mode propagating along single mode fibers do mode filters eliminate?

Description : A mode filter is a device that attenuates specific modes propagating in the core of an optical fiber. What mode propagating along single mode fibers do mode filters eliminate?

Last Answer : Second-order mode.

How does a low-pass filter detect pdm?

Description : How does a low-pass filter detect pdm?

Last Answer : By averaging the value of the pulses over the period of the pulse-repetition rate.

which components act as the filter network in the diode detector?

Description : which components act as the filter network in the diode detector?

Last Answer : C1 and R1.

What is the largest count that can be indicated by a four stage counter?

Description : What is the largest count that can be indicated by a four stage counter?

Last Answer : 11112, or 1510.

What is the modulus of a five-stage binary counter?

Description : What is the modulus of a five-stage binary counter?