Which of the following terms is often used to describe two parallel paths that have identical conductive terminations to two separate grounding reference points?

Question

Options

• AResistive loop
• BGround loop
• CCapacitive loop
• DInductive loop
• EConductive loop

• A
  13% (4)
• B
  72% (23)
• C
  3% (1)
• D
  3% (1)
• E
  9% (3)

Explanation

"Ground loop" precisely names the condition because it describes a closed electrical loop formed when two conductive paths each connect to a separate grounding reference point, allowing current to circulate between them. This phenomenon is well known in audio and instrumentation systems, where it causes unwanted hum or interference. The other choices each describe loops defined by a specific electrical property - resistive, capacitive, and inductive loops refer to the dominant impedance characteristic of a circuit, not to grounding topology, so they are incorrect. "Conductive loop" is too generic and does not capture the defining feature, which is the presence of two distinct ground reference points.

Memory tip: Picture the word "ground" doing double duty - two grounds, two paths, one loop. If you see "two separate grounding reference points" in a question stem, that phrase is the fingerprint of a ground loop.

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