A circuit reference point, often referred to as 'ground', is a common return path within a circuit that serves as a baseline for measuring voltages. It helps in establishing a zero voltage level against which other potentials within the system are measured, facilitating stability and predictability in the circuit operation.

Circuit Reference Point

Ground refers to the reference point in an electrical circuit, typically considered to have zero voltage, serving as a common return path for electric current. It is crucial for safety, preventing electrical shocks and ensuring the proper operation of electrical systems by providing a stable voltage reference.

Ground

Common return path

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