Recent content by Rupturez

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    Calculate Time for Discharging Capacitors

    Ahh 5 time constants that rings a bell. thanks uart
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    Calculate Time for Discharging Capacitors

    I understand the voltage will never actually reach absolute zero, however I am after the "practicle" time for the capacitor to reach "practicle" zero voltage.
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    Calculate Time for Discharging Capacitors

    Hi there, okay my Question is on discharging capacitors. the equation for instantanious voltage of a capacitor whilst dischargeing is : v=Vi*e^-t/R*C However I am not sure how to find the time for a capacitor to completely discharge to zero volts. When I transpose for t...
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    Calculating Time to Discharge Capacitor to 3V

    Thanking you jambaugh
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    Calculating Time to Discharge Capacitor to 3V

    Should I be solving for t or using a normalised universal timeconstant(RC) curve to estimate time?
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    Calculating Time to Discharge Capacitor to 3V

    Homework Statement Determine how long it takes the capacitor to discharge to a value of 3v C=1.5E-6F R=1E3ohms Vi=25v Vf=3v Homework Equations T=RC v=Vi*e^(t/T) The Attempt at a Solution T=1000*1.5E-6 T=1.5E-3s Vf(3v) is 12% of the initial 25v Im having trouble...