When a switch is closed, completing an lr series circuit, the time needed for the current to reach one half its maximum value is

Question

Vlada [557]

2 years ago

14

When a switch is closed, completing an lr series circuit, the time needed for the current to reach one half its maximum value is

_____ time constants?

Computers and Technology

1 answer:

uysha [10] · Answer 1 · 2022-07-15T22:24:53+03:00

uysha [10]2 years ago

7 0

The answer is 0.693 . When a switch is closed, completing an LR series circuit, the time needed for the current to reach one half its maximum value is 0.693

e^(-t/T) = 0.5
-t/T = ln(0.5) = -0.693