What happens to power consumption in a series circuit when the circuit is opened?

In a series circuit, all components are connected in a single path, and the current that flows through one component also flows through all components in that path. When the circuit is opened, typically by a switch or a broken connection, the flow of current stops entirely. Since power consumption in a circuit is directly related to the current flowing through it, no current means no power being used.

Power in an electrical circuit is calculated with the formula (P = V \times I), where P is power, V is voltage, and I is current. When the circuit is opened, the current (I) drops to zero. Therefore, regardless of the voltage across the open circuit, the power consumed can be considered zero because (P = V \times 0 = 0).

Thus, in this situation, the correct conclusion is that no power is consumed at all when the circuit is opened.