Engineering Board Exam Reviewer · Time Response of Reactive Circuits · easy
What percentage of its final value has a charging capacitor voltage reached after one time constant?
- 36.8%
- 50%
- 86.5%
- 63.2%
Answer
D. 63.2%
Solution
vC=V(1-e-1)=0.632V, which is 63.2% of the final value. (36.8% is what is left.)
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