Question

again, for the last circuit, if zero voltage were possible, what circuit element could substitute for the capacitor-inductor series combination that would yield the same voltage?

Answer 1

A resistor could substitute for the capacitor-inductor series combination to yield the same voltage if zero voltage were possible.

Step-by-step explanation:

The circuit element that could substitute for the capacitor-inductor series combination in order to yield the same voltage if zero voltage were possible is a resistor. A resistor does not store energy and has no effect on the phase relationship between the voltage and the current. Therefore, it would have the same voltage across it as the capacitor-inductor combination.