What is a filter and different types of filter

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Hi 

i wanted to know about different types of filter.Plz help 

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Best Answer by Gajora Sam
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Answered By 0 points N/A #127381

What is a filter and different types of filter

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When passive or active elements are designed to reject or select a band of frequencies then it is called filter. Filters are used to remove unwanted frequencies. There are two types of filter.

1) Active filter: – Active filters are filters that employ active devices such as transistors and operational amplifiers in combination with R, L, and C

2) Passive filter: – Passive filters are  those filters composed of series or parallel combination of R, L, and C elements.

Low pass filter: – The filter which passes only the frequencies below cutoff frequencies.

High pass filter: – The filter which passes only the frequencies above cutoff frequencies.

Answered By 0 points N/A #127382

What is a filter and different types of filter

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Your Question is not clear; there are many things in which we use filter like in Photoshop, Electrical Engineering, and Water Filter etc. So please describe your question little more.

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