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Time Constant Equations

Value of Time Constant in Series RC and RL Circuits

Time constant in seconds = RC

Time constant in seconds = L/R

Calculating Voltage or Current at Specified Time

Universal Time Constant Formula


Calculating Time at Specified Voltage or Current

Lessons In Electric Circuits copyright (C) 2000-2020 Tony R. Kuphaldt, under the terms and conditions of the CC BY License.

See the Design Science License (Appendix 3) for details regarding copying and distribution.

Revised July 25, 2007

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