please answer 12-15 s shown below Use the dagrm to nest d questions R 500 kQ at

Question

please answer 12-15

s shown below Use the dagrm to nest d questions R 500 kQ at the moment the 12 Assume the switch has jest been closed What is the charge on the capachor switch as closed too 8) 120 uC b) 10V El 12 pf 13. At what time is the current through the resistor masimum? A) Os B) 6s D) 500 e) As t on the current approaches t's maximum current 14. What is the RC time constant of the above cincuit? A) 0s 8) 65 C) 10s D) 12s E) 500 s 15, At what time has the charge on the capacitor reached 632% of its maximum posible charge? A) 0s ?) 6s C) 10s D) 12s E) 500s Page 4 of 8

Explanation / Answer

12. at the moment, the switch is closed charge on capacitor = 0 C

13. At t=0s the current through the resistor is maximum

14. Time constant = RC = 500 X 103  x 12 x 10-6

= 6 s

15. At time constant, the charge on the capacitor reaches 63.2%

hence required time T = RC = 6s

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