In electrical terms, what does a higher voltage indicate about a circuit?

A higher voltage in a circuit indicates an increased energy supply. Voltage can be understood as the potential difference that drives electrical charge through a circuit. When the voltage is higher, it means that there is a greater energy per unit charge available to do work, such as lighting a bulb or powering a device.

This increased energy can lead to higher power output, assuming the circuit's resistance remains constant. Power is defined as the product of voltage and current (P = V × I), so with an increase in voltage, if the resistance does not change significantly, the current can also increase, contributing to greater power consumption.

In contrast, lower power consumption occurs with lower voltage or higher resistance in a circuit, and changes in resistance do not directly correlate with voltage levels. Additionally, higher voltage does not inherently indicate lower current flow; rather, it tends to allow for a larger current flow under the right circuit conditions. Thus, the correct choice highlights the relationship between voltage and energy supply effectively.