(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The current in a series RL circuit increases to 20% of its final value in 3.4μs. If L = 2.0mH, what is the resistance R?

2. Relevant equations

I=I_0(1-e^(-t/(L/R))) <----Im not sure if this equation is right?

3. The attempt at a solution

I'm unsure how to start this problem, or if I'm on the right track with this equation?

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# Homework Help: The current in a series RL circuit

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