Engineering Board Exam Reviewer · Time Response of Reactive Circuits · medium
The switch in the circuit shown closes at t=0 with the capacitor uncharged (V=48 V, R=10 k , C=2, F). Find the circuit current at t=60 ms.
- 4.56 mA
- 1.07 mA
- 0.239 mA
- 0.478 mA
Answer
C. 0.239 mA
Solution
=20 ms. i=V/Re-t/ = 48 V10 k e-60 ms/20 ms=239, A.
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