What can you say about
the equilibrium point at (0,0) of the van der Pol system?
What can you say about
solutions with large initial values for both current and voltage?
What is the eventual fate
of all nonequilibrium solutions?
How does the limit cycle
change as the parameter a changes?
For large values of a,
the limit cycle has a distinctive shape. Describe the consequences of that
shape in terms of current and voltage in the circuit.
