(13%) Problem 4: A bank of batteries, total emf ε = 1.5 V, is connected with resistor R = 180 k22, capacitor C = 470 pF,

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(13%) Problem 4: A bank of batteries, total emf ε = 1.5 V, is connected with resistor R = 180 k22, capacitor C = 470 pF, and two-pole switch S as shown. The switch is initially set to point b so that the resistor and capacitor are in series. The switch is left in this position for a sufficiently long time so that the capacitor is completely discharged. ✓ 25% Part (b) Calculate the time constant, t(in seconds), for this circuit. T = 8.46 * 10-5 T= 8.46E-5 ✓ Correct! S = 25% Part (c) Determine an expression for the charge on the pacitor a function of time, q(t), in statement. ✓ 25% Part (a) The switch is disconnected from point b and connected to point a. What will happen to the voltage across the capacitor? The voltage will increase exponentially with time. ✓ Correct! R T Otheexpertta.co q(t) = ε e-UR C X Attempts Remain ▷ A 25% Part (d) Calculate the voltage drop across the capacitor (in volts) at time t = 120 us after the switch is connected to point a. of parameters given in the original problem