# Electronics/RL transient

For a series RL of one resistor connected with one inductor in a closed loop

## Circuit Impedance

editIn Polar Form Z/_θ

- = R/_0 + ω L/_90
- Z = |Z|/_θ = /_Tan
^{-1}

In Complex Form Z(jω)

## Differential Equation of circuit at equilibrium

edit## Time Constant

editt I(t) % I _{o}0 A = e ^{C}= I_{o}100% R/L .63 I _{o}60% I _{o}2 R/L I _{o}3 R/L I _{o}4 R/L I _{o}5 R/L .01 I _{o}10% I _{o}

## Angle Difference between Voltage and Current

editVoltage leads Current at an angle ? When a determining process is necessary many problems arise in a diagram. We need to expend on one process for the determing factor in this type of formulae

- Tan? =

Change the value of R and L will change the value Angle Difference, Angular Frquency, Frequency, Time