# Switched RL Series Circuit#

Consider the $$RL$$ circuit shown below.

Here, $${\boldsymbol \varepsilon} = {{ params.emf }}\rm\ V$$, $$L = {{ params.L }}\rm\ mH$$, and $$R = {{ params.R }}\rm\ \Omega$$.

## Part 1#

Determine the time constant of the circuit.

Please enter in a numeric value in $$\rm\ s$$.

## Part 2#

Immediately after switch $$\rm S$$ is closed, what is the initial current through the resistor?

Please enter in a numeric value in $$\rm\ A$$.

## Part 3#

What is the final current through the resistor?

Please enter in a numeric value in $$\rm\ A$$.

## Part 4#

What is the current through the resistor when $$t = t^{\star} = {{ params.num }} \tau_L$$?

Please enter in a numeric value in $$\rm\ A$$.

## Part 5#

What is the voltage across the inductor when $$t = t^{\star} = {{ params.num }} \tau_L$$?

Please enter in a numeric value in $$\rm\ V$$.

## Part 6#

What is the voltage across the resistor when $$t = t^{\star} = {{ params.num }} \tau_L$$?

Please enter in a numeric value in $$\rm\ V$$.