A filter consist of resistance = 25k Ohm. and capacitance = 220 pF. Find out the cut of frequency.
Question
A filter consist of resistance = 25k Ohm. and capacitance = 220 pF. Find out the cut of frequency.
Solution
To find the cut-off frequency of a filter, we can use the formula for the cut-off frequency of a RC (resistor-capacitor) circuit, which is:
f_c = 1 / (2πRC)
where:
- f_c is the cut-off frequency,
- R is the resistance, and
- C is the capacitance.
Given that R = 25k Ohm = 25,000 Ohm and C = 220 pF = 220 x 10^-12 F, we can substitute these values into the formula:
f_c = 1 / (2π * 25,000 * 220 x 10^-12)
Solving this equation will give us the cut-off frequency.
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