Given:
Capacitance, $C = 22 \, \mu F = 22 \times 10^{-6} \, F$
Initial capacitor voltage, $V_0 = 80 \, V$
Resistance, $R = 1.5 \, M\Omega = 1.5 \times 10^6 \, \Omega$
Current at a certain time, $I = 33 \, \mu A = 33 \times 10^{-6} \, A$
Goal: Find the charge on
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