What is a filter capacitor?

User Avatar

Wiki User

โˆ™ 2018-02-20 02:34:24

Best Answer

Capacitor has many applications in electronics circuits, one of its application is in FILTERS.

Mainly two types of Filters are formed with the help of capacitor namely,

i)Low Pass Filter(LPF)

ii)High Pass Filter(HPF)

Impedance of capacitor is inversely propotional to the frequency, therefore a capacitor in series with resistor will act as Low Pass Filter. since all the high frequency are passed to ground.

User Avatar

Mohammed Parisian

Lvl 10
โˆ™ 2021-08-12 18:33:57
This answer is:
User Avatar
Study guides


20 cards

A wave has a frequency of 250 hertz what is the period of the wave

In which material does sound travel the fastest

In this type of wave particles of the medium vibrate perpendicularly to the direction of the wave itself

A 5 ohm resistor a 10 ohm resistor and a 15 ohm resistor are connected in series to a 120 volt power source What is the amount of current flowing between the 5 ohm resistor and the 10 ohm resistor

See all cards
84 Reviews

Add your answer:

Earn +20 pts
Q: What is a filter capacitor?
Write your answer...
Still have questions?
magnify glass
Related questions

What is the advantage of capacitor filter over inductor filter?

this is because capacitor filter is sparking in high voltage where as inductor filter will not sparking.

Output voltage of half wave rectifier without capacitor filter is less or more than rectifier with capacitor filter?


What are the advantages and disadvantages of pi section filter over a shunt capacitor filter?

1.More output voltage compared to shunt capacitor filter. 2.Less No of ripples. 1.Higher cost relative to shunt capacitor filter. 2.Larger in size.

What is the difference between with capacitor rectifier and without capacitor rectifier?

To know the difference between capacitor and non capacitor rectifiers one must study what is the function of filter part.the filter part consists of capacitors or inductors or combination of both. the output of a simple diode rectifier is pulsating dc which means it consists of both dc part and ac part. filters are used to remove the ac part from such an output. capacitor filter means that a capacitor is used for filtering out the ac part. non capacitor or inductor filter means that an inductor is used for filtering out the ac part. There is another type called pii filter where both inductor and capacitor are used. Pii filter is the best kind of filter available

What effect does the series resistance of a capacitor used in a capacitor filter have on diode current and ripple voltage compared with an ideal capacitor of no resistance?

The effective resistance of the capacitor reduces the ripple current through the capacitor making it less effective in its function of smoothing the voltage. But if the capacitor filter is fed by a transformer and diodes, the resistance of the transformer exceeds that of the capacitor.

Can a radial capacitor react different than an axial capacitor when being used as a filter for EMF?

Yes. The inductance of a radial capacitor can be different than an axial capacitor, particularly at RF, so the reaction as a filter for EMF could well be different.

How does a capacitor act as a filter?

The cutoff frequency of filter depends upon the value of capacitor and resistance. Therefore, below cutoff frequency or above this frequency, capacitor allow to pass all other frequencies.

How does a capacitor acts as a filter?

The cutoff frequency of filter depends upon the value of capacitor and resistance. Therefore, below cutoff frequency or above this frequency, capacitor allow to pass all other frequencies.

What is the difference between an inductive low pass filter and a capacitive low pass filter?

Where you are measuring. A simple filter will be two elements - a capacitor or inductor and a resistor. A capacitor will tend to "trap" low frequencies. In the case of a lowpass filter made of a capacitor and resistor, the output voltage will be measured across the capacitor. Inductors are the opposite, so the output would be across the resistor.

Why do we use inductive filter than capacitor?

An inductive filter is in fact an LC circuit in which an inductor is connected in series with the capacitor. This arrangement is also known as a low-pass filter.

What is the simplest component in a filter circuit called?


When a capacitor acts as a better filter?

When it is connected to resistor

People also asked