Problem: In the circuit shown in the figure below, switch S is closed at a time t = 0.Find the reading of each ammeter after a long period of time has passed with the switch closed.

Ohm's law:

$\boxed{\mathbf{V}\mathbf{=}\mathbf{i}\mathbf{R}}$

Equivalent resistance for resistors in series:

$\boxed{{\mathbf{R}}_{\mathbf{eq}}\mathbf{=}{\mathbf{R}}_{\mathbf{1}}\mathbf{+}{\mathbf{R}}_{\mathbf{2}}\mathbf{+}\mathbf{.}\mathbf{.}\mathbf{.}\mathbf{+}{\mathbf{R}}_{\mathbf{n}}}$

Equivalent resistance for resistors in parallel:

$\boxed{\frac{\mathbf{1}}{{\mathbf{R}}_{\mathbf{eq}}}\mathbf{=}\frac{\mathbf{1}}{{\mathbf{R}}_{\mathbf{1}}}\mathbf{+}\frac{\mathbf{1}}{{\mathbf{R}}_{\mathbf{2}}}\mathbf{+}\mathbf{.}\mathbf{.}\mathbf{.}\mathbf{+}\frac{\mathbf{1}}{{\mathbf{R}}_{\mathbf{n}}}}$

After a long period of time, an inductor acts as a short circuit.

The 5.0Ω, the 10.0Ω, and the 15.0Ω resistor are in parallel.