In a parallel circuit, what is true about voltage?

In a parallel circuit, the voltage remains constant across all components connected in parallel. This means that all points in the parallel circuit experience the same electrical potential difference. When multiple devices or components are connected in parallel, each can operate independently and receive the same voltage level from the power source. This property is fundamental to the design of parallel circuits, as it allows for consistent operation of electrical devices.

The ability for each component to have the same voltage across its terminals is what distinguishes parallel circuits from series circuits, where voltage can vary between components. In a series configuration, the voltage drops across each component can differ, depending on their resistance. Additionally, while voltage in a parallel circuit is stable, the current may vary depending on the resistance of each branch, leading to individual branch currents being different. This consistent voltage characteristic in parallel circuits is essential for ensuring that electrical devices function properly and receive the necessary power supply.