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anonymous

  • 4 years ago

Which value of capacitor is more effective as filter element, the larger or smaller and why ?

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  1. anonymous
    • 4 years ago
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    What kind of filter?

  2. anonymous
    • 4 years ago
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    Capacitive filter, I want only the reason?

  3. anonymous
    • 4 years ago
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    I would say bigger values of capacitors would be more effective. Since \[\ X_L = \frac{1}{2\pi fC}\] where f - frequency and C- capacitance X_c - capacitive reactance (capacitors' opposition to the change in AC voltage) The smaller X_c of the filter capacitor with respect to the load resistance, the better the filtering action. Also, if you have a larger X_c (small C) that means that there will be a bigger voltage drop on that element in the circuit, which you probably don't want.

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