In the circuit shown in (Figure 1) both capacitors are initially charged to 40.0 V
For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Discharging a capacitor.
Part A
How long after closing the switch S will the potential across each capacitor be reduced to 15.0 V ?
Part B
What will be the current at that time?
A)
Resistance, R = 50 + 30 = 80 ohm
Capacitance, C = 20 + 15 = 35 uF
Time, t = - RC ln(V/Vo)
t = - (80 x 35 x 10^-6) ln(15/40)
t = 2.74 ms
B)
Current, I = 40/80 = 0.5 A
Current, I = 0.5 x e^(-0.00274/(80 x 35 x 10^-6))
I = 0.18 A
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In the circuit shown in (Figure 1) both capacitors are initially charged to 40.0 V Part...
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