Engineering Board Exam Reviewer · Time Response of Reactive Circuits · easy
The switch in the series RL circuit shown closes at t=0 (V=15 V, R=50, , L=1 H). Find the time constant.
- 20 ms
- 100 ms
- 10 ms
- 40 ms
Answer
A. 20 ms
Solution
=L/R= 1 H50, =20 ms.
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