Calculating Current Through a Capacitor with a Constant Voltage Input

[circuitaki]

calculate the current through the capacitor 100mF in response of voltase 20-

 

[queenofbabes]

Your thoughts?

 

[circuitaki]

I want to find out the i if v across capacitor is -20v

I know the formula is i = C dv/ dt

but here I have no t

only capacitance and voltage

 

[diazona]

I want to find out the i if v across capacitor is -20v

I know the formula is i = C dv/ dt

but here I have no t

only capacitance and voltage

It's not a t. It's a derivative with respect to time. dv/dt is the rate of change of voltage with respect to time. Can you find that?

 

[circuitaki]

hi dear,

if t is the rate of change of time then how can i drive it kindly guide

 

[Redbelly98]

With the given information, you can only get the charge on the capacitor. Calculating i is impossible without more information.

I suggest you look carefully at the problem statement again, is there any other information? Or a figure?

 

[circuitaki]

hi dear,


Kindly check that we have voltage and capacittance as

v= -20 v

and

capacitace


5 mF

 

[Redbelly98]

Maybe this question is easier than we are making it out to be.

If v = a constant -20V, then

dv/dt = ____?​