Now differentiate q (t) to obtain an expression for the current I (t) . Express your answer in terms of any or all of E, R, t, and C. Enter exp ( x ) for e . I (t) = Submit Request Answer Part J Find the time t2 that it would take the charge of the capacitor to reach 99.99% of its maximum value given that R = 12.0 $2 and C' = 500 /F . Express your answer numerically in seconds. Use three significant figures in your answer. View Available Hint(s) t2 = Submit Let us now consider a different R-C circuit. This time, the capacitor is initially charged (q(0) = go), and there is no source of EMF in the circuit. (Figure 2) We will assume that the top plate of the capacitor initially holds positive charge. For this circuit, Kirchhoff's loop rule gives IR + 2 = 0, or equivalently, IR - - Part K Figure Find the current I (t ) as a function of time for this circuit . Express your answer in terms of go , C, t, and R. Enter exp (x ) for et . View Available Hint(s) M 10=0 + 0 2 ? -40=0 I (t) = Submit Next > Provide Feedback