When Does Voltage Across Resistor Equal Voltage Across Inductor in RL Circuit?

[JordanU94]

Homework Statement

A step input of 100V is applied to a resistor of 50Ω in series with an inductor of 10H at time t=0. Calculate the time at which the voltage across the resistor equals the voltage across the inductor

Homework Equations

Im not sure which equation to use, i know τ=L/R is used, but that's all I am certain of

The Attempt at a Solution

I have no valid attempts

 

[gneill]

Homework Statement

A step input of 100V is applied to a resistor of 50Ω in series with an inductor of 10H at time t=0. Calculate the time at which the voltage across the resistor equals the voltage across the inductor

Homework Equations

Im not sure which equation to use, i know τ=L/R is used, but that's all I am certain of

The Attempt at a Solution

I have no valid attempts

Google is your friend. Look up "LR series circuit".

 

[JordanU94]

I have been for the past week, I've found equations to find the current in the circuit, and the time constants of the exponensial curve, but not what I'm looking for

 

[gneill]

I have been for the past week, I've found equations to find the current in the circuit, and the time constants of the exponensial curve, but not what I'm looking for

Well, what equations have you found?