Yes, in a parallel circuit, the voltage across each component is constant. This means that all components connected in parallel will experience the same potential difference. When components are connected in parallel, they are essentially connected directly to the voltage source, which maintains a constant voltage for each component.
This characteristic of parallel circuits can be explained by Ohm’s Law, which states that voltage (V) is equal to the current (I) multiplied by the resistance (R). In a parallel configuration, even if the resistances differ, the voltage remains the same across all components. This enables each component to operate independently, ensuring that if one component fails or is removed, the others continue to function properly without any change in voltage.