"A capacitor is being charged from a battery and through a resistor of 20 KOhms. It is observed the the voltage on the capacitor rises from 10% of its final value to 90%, in 15 seconds. Calculate the capacitor's capacitance."
I know we are supposed to show an attempt at a solution, but I'm not even sure where to start with this one :/. I know I need to be able to find the time constant from the data given, and from there tau = RC, but I don't know how to incorporate the percentage difference. I just need a push in the right direction
I know we are supposed to show an attempt at a solution, but I'm not even sure where to start with this one :/. I know I need to be able to find the time constant from the data given, and from there tau = RC, but I don't know how to incorporate the percentage difference. I just need a push in the right direction