(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A capacitor is charged to 1 coulomb; the capacitance is 9.00×10-5 farads.

Then a switch is closed which puts the capacitor in a closed circuit with a resistor; the resistance is 9.0x10^1 ohms.

Calculate the charge on the capacitor after 4.00 milliseconds. (1 ms = 0.001 s).

I know some equations relating capacitance, charge, and voltage, but I don't understand how to approach this problem

2. Relevant equations

Q(t) = Q0[e^-t/RC]

3. The attempt at a solution

No clue. I have no idea how to approach this problem and no idea what the value for V is.

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# Homework Help: Decay in an RC Circuit

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