Engineering Board Exam Reviewer · Time Response of Reactive Circuits · hard
A 5, F capacitor charged to 100 V discharges through a 2 M resistor. What is the capacitor voltage 10 s after the discharge begins?
- 36.8 V
- 63.2 V
- 50 V
- 73.6 V
Answer
A. 36.8 V
Solution
=RC=(2×106)(5×10-6)=10 s. vC=100e-10/10=100(0.3679)=36.8 V.
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