Solve the problem.How many seconds after the switch in an RL circuit is closed will it take the current i to reach  of its steady state value? Express answer in terms of R and L and round coefficient to the nearest hundredth.

A. 0.36 L/R seconds
B. 1.20 L/R seconds
C. 1.40 L/R seconds
D. 0.56 L/R seconds


Answer: A

Mathematics

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