what is the time constant of rl circuit
RL circuit These equations show that a series RL circuit has a time constant, usually denoted τ = L/R being the time it takes the voltage across the component to either fall (across the inductor) or rise (across the resistor) to within 1/e of its final value. That is, τ is the time it takes VL to reach V(1/e) and VR to reach V(1 − 1/e).
Red Line (Los Angeles Metro) Trains run between approximately 4:30 a.m. and 1:00 a.m. the following morning.[4] On Friday and Saturday evenings, trains are extended until 2:00 a.m. of the following morning. First and last train times are as follows: