  In this paper, we study properties of effective impedance of finite
electrical networks and calculate the effective impedance of a finite ladder
network over an ordered field. Moreover, we consider two particular examples of
infinite ladder networks (Feynman's network or LC-network and CL-network, both
with zero on infinity) as networks over the ordered Levi-Civita field. We show,
that effective impedances of finite LC-networks converge to the limit in order
topology of Levi-Civita field, but the effective impedances of finite
CL-networks do not converge in the same topology.
