Recent content by Hassss

thank you for the clarification just to ensure is this equation correct for calculating current during capacitor charging i=Vse^-t/RC regards

cheers i just calculated it and got 7.77x10^-4 Also calculating current after discharge. So Vs being voltage after capacitor has discharged or initial voltage before its discharged? thank you

Sorry I never mentioned them. R=100kOhm C=100uF By any chance would anyone know the equation for current during capacitor discharge. I found this equation in my research but does not seem right at all! i=Vse^-t/CR Tells me during capacitor discharge i=15A :eek: Baring in...

Ive been plugging at the equation again but I've seemed to end up with this as a final. from Vc=Vs(1-e^-t/CR) to Vc/Vs=1-e^-t/CR to ln(1-Vc/Vs) = ln(e^-t/CR) to ln(1-Vc/Vs)=(-t/CR) CRln(1-Vc/Vs)=-t therefore t=-CRln(1-Vc/Vs) I have tried implementing your advice into this think...

Hi the last time i did calculus was approx 1 1/2 years ago I've literally have no clue what the chain rule or the relationship you've stated means! :(

For exponential decay the equation does not have a 1- its Vc=Vse^-t/CR rearranged for t=-CRlnvc/Vs For exponential growth it contains the 1- Vc=Vs(1-e^-t/CR) I need to make t subject for this equation Its just the 1-e^-t/CR that is confusing me Ive managed thus so far 1+Vc/Vs=e^-t/CR...

For exponential decay i managed to rearrange it and got t=-CRlnvc/Vs from equation Vc=Vse^-t/CR (please tell me its correct) Its just the 1-e^-t/CR that is confusing me

For exponential decay i managed to rearrange it and got t=-CRlnvc/Vs from equation Vc=Vse^-t/CR (please tell me its correct) Its just the 1-e^-t/CR that is confusing me

Hi Ive got some calculations to do on amount of charge on a capacitor with respect to t. Formula for amount of charge on a capacitor is Q=5.7ln4.5t I need to determine the rate of discharge with different values of t, t=5ms t=7.5ms I know i need to differentiate the formula...

Homework Statement I need to rearrange the equation for exponential growth of voltage across capacitor during charging. Homework Equations Equation is Vc=Vs(1-e^-t/CR) I need to find out how long it takes for Vc=26v with Vs=40v thus rearranging the equation making t the subject...