Which statement best describes the relationship between power and control in a circuit?

• A. Power handles energy delivery while control manages signals and logic
• B. Power handles sensors, control handles loads
• C. Control handles energy, Power handles logic
• D. Both are the same

Answer: (A)

The main idea is that power and control serve different, complementary roles in a circuit. Power handles energy delivery: it provides the voltage and current that flow to the load, supplying the energy the circuit needs to operate. Control, on the other hand, manages signals and logic: it processes inputs, makes decisions, and generates the control signals that turn devices on or off, regulate performance, and coordinate timing.

So the statement that best describes their relationship is that power handles energy delivery while control manages signals and logic. This fits because energy flow powers components, while the control path governs when and how that energy is used. The other options mix up these roles—sensors and loads aren’t the primary domains of power versus control in that way, reversing roles would misplace energy handling and signaling, and saying they’re the same ignores their distinct functions.