Which grounding technique can bypass the ground return?

• A. Single-ended connections
• B. Double-ended connections
• C. Ground loops
• D. No grounding

Answer: (B)

Double-ended connections rely on a pair of conductors carrying the signal in a differential manner, so the current returns through the opposite conductor instead of going through earth ground. This setup bypasses the ground return path, which helps avoid ground impedance and noise introduced by grounding differences. In contrast, single-ended signaling uses a ground reference for the return, making it susceptible to ground potential differences; ground loops create unwanted currents via multiple ground paths; and no grounding removes the reference entirely, which isn’t a reliable way to complete a signal circuit. So using a differential (double-ended) approach is the method that bypasses the ground return.