In a parallel circuit, what is true about the voltage across each parallel resistor?

In a parallel circuit, the key characteristic is that the voltage across each parallel resistor is indeed the same. This is a fundamental property of parallel circuits. When resistors are connected in parallel, they are all connected across the same two points in the circuit, and as a result, they share the same voltage.

This uniformity in voltage across each resistor leads to different currents depending on the resistance of each component. According to Ohm's Law (V = IR), if the voltage is constant, changes in resistance will cause changes in current. Therefore, while the voltage remains the same, the current flowing through each resistor can differ based on its resistance value.

This principle is crucial for understanding how electrical circuits function, especially when analyzing circuits that include multiple components in parallel. The fact that the voltage does not vary among resistors in a parallel configuration allows for predictable circuit behavior and is foundational in both theoretical and practical applications of electrical engineering.