What should the resultant current be when AC is superimposed on the DC voltage source?

When analyzing the situation where AC is superimposed on a DC voltage source, the resultant current is influenced by the characteristics of both the AC component and the DC component, as well as the overall circuit impedance.

In this scenario, if the correct answer is 0.005 amperes, it indicates that the calculation or measurement of current reflects the net effect of the superimposed AC on the DC. This resultant current is typically derived from the combination of the two current sources, where the AC component’s characteristics such as amplitude and frequency play a crucial role in determining its contribution to the overall current.

In circuits involving both AC and DC, the two current forms add together algebraically. If the AC component produces a current that alternates above and below a baseline (the DC level), the resultant current is effectively the vector sum of the currents, taking into account factors like phase differences in a more complex analysis.

The correct choice shows that, under the conditions specified, the system's impedance and the characteristics of the AC waveform combine with the existing DC current to provide a total value of 0.005 amperes. Understanding the interaction of AC and DC in this way is essential to accurately predict outcomes in electrical circuits.