A realistic model of an ideal source includes an internal resistance that Represents the physical resistor included in the construction of the source Is
a. in series with the source as typically
b. the internal resistors are always in series
c. an addition to create a mathematical model which behaves like the actual source
d. Provides a highly precise model of a source Due to nonlinearity, superposition cannot be applied to directly find power current voltage
e. All of the above