The time for current in an rl circuit is to reach half its final value is
t=−0.3416225
How long does it take for the current in an rl circuit with r = 140 ? and l = 69 mh to reach half its final value?
Question Parameter(s):
the current in an rl circuit with r = 140 ? and l = 69 mh
Generally, the equation for the Current is mathematically given as
[tex]I = \frac{V}{R} (1 - e^{- \frac{R}{L}t } )[/tex]
Therefore, in order for current to reach half its final value we must have
[tex]e^{- \frac{R}{L}t } = 0.5[/tex]
In conclusion
[tex]e^{- \frac{R}{L}t } = 0.5[/tex]
Hence
t=−0.3416225
Read more about Time
https://brainly.com/question/4931057
