In the circuit in the figure
emf of the battery \( \varepsilon = 20 \text{ V} \).
All the inductors are of the
same inductance, \( L = 0.05 \text{ H} \)
and of negligible resistances.
Resistances of the resistors
are \( R_0 = 3 \Omega \), \( R_1 = 1 \Omega \), \( R_2 = 4 \Omega \), \( R_3 = 4 \Omega \), \( R_4 = 4 \Omega \), \( R_5 = 5 \Omega \),
\( R_6 = 3 \Omega \). The switch S is closed at the time \( t = 0 \).
What is the current flowing in \( R_0 \) long after the switch S is closed?