Switched RL Series Circuit: Time Constant

Consider the \(RL\) circuit shown below.

The current in the circuit reaches half of its maximum value in \({{ params.t }}\rm\ ms\) after switch \(\rm S\) is thrown.

Part 1

Determine the time constant \(\tau_L\) of the circuit.

Answer Section

Please enter in a numeric value in \(\rm\ s\).

Part 2

Given \(L = {{ params.L }}\rm\ mH\), determine the resistance \(R\) of the circuit.

Answer Section

Please enter in a numeric value in \(\rm\ \Omega\).

Attribution

Problem is from the OpenStax University Physics Volume 2 textbook, licensed under the CC-BY 4.0 license.