represent the internal inductance of the sources, C
i1
and C
i2
represent the
terminal capacitance of the sources and R
i1
and R
i2
represent the internal resistance of the
sources. L
c
and R
c
represent the inductance and resistance of the connecting wires.
Obviously, two practical voltage sources can be connected in parallel even if their open-
circuit electromotive forces (e.m.f.s) are not equal at all t; only that they cannot be modelled
by ideal independent voltage source model.
Two ideal independent current sources in series raise a similar issue (see Fig. 2.3-3).
KCL requires that i
s1
(t) = i
s2
(t) for all t. Even if this condition is satisfied, ...
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