The switch on an $R C$ circuit is closed at $l=0$. Given that $\mathcal{E}=9.0 \mathrm{V}, R=150 \mathrm{\Omega},$ and $C=23 \mu \mathrm{F},$ how much charge is on the capacitor at time $t=4.2 \mathrm{ms} ?$
Added by William M.
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We know that the charge on the capacitor at any time t is given by the equation: $Q(t) = C\mathcal{E}(1 - e^{-\frac{t}{RC}})$. Show more…
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