a. The RC circuit starts with a charged capacitor. The resistance in the circuit is R= 40000000 ohm, and the capacitor has capacitance C= 3e-06 Farads. The capacitor is at voltage Vo=20 volts at t=0.0s, when the switch is closed to b. How long does it take the capacitor to discharge to 90 percent of its initial voltage?

b. What is the voltage across the resistor after the switch has been closed for t=15 s? 

c. What is the current through the circuit after the switch has been closed for t=15 s?

d. What is the voltage across the capacitor after the switch has been closed for t=15 s?

e. What is the charge on the capacitor after the switch has been closed for t=15 s? 

 

Transcribed Image Text:

b a S R ww b a S R ww