User:Em3rgent0rdr/sandbox/Calculator test

RC discharge calculator

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For instance, 1  of resistance with 1  of capacitance produces a time constant of approximately 1 seconds. This τ corresponds to a cutoff frequency of approximately 159 millihertz or 1 radians. If the capacitor has an initial voltage V0 of 1 , then after 1 τ (approximately 1 seconds or 1.443 half-lives), the capacitor's voltage will discharge to approximately 368 millivolts:

 

 
 VC(1τ) ≈ 36.8% of V0 

References

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