Homework Answers
charging voltage across capacitor will be written as
Vc =Vs(1 - e^(-t/RC))
=> 18.5 = 30 (1 - e^(-t/10.512))
=> 1 - e^(-t/10.512) = 18.5/30 = 0.616
=> e^(-t/10.512) = 0.3833
=> t = -10.512*ln(0.3833) = 10.08 sec
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