The electrodes are fitted with small _____ so that they will grab onto a subject's clothing.

The electrodes are fitted with small _____ so that they will grab onto a subject's clothing.

• A. Clips
• B. Hooks
• C. Magnets
• D. Barbs

Answer: (D)

The main idea here is how the electrode remains anchored to the target so electrical contact isn’t lost during movement. Small barbs are used because they grip fabric fibers, locking the electrode onto a subject’s clothing and keeping it in place as the person moves. This secure attachment ensures a consistent electrical connection, which is essential for the device to work effectively. Clips would rely on squeezing or pressure to stay attached, and they can slip off or lose grip. Hooks might snag, but they’re less reliable for maintaining steady contact and can damage fabric or shift easily. Magnets depend on metallic material in the clothing, which isn’t dependable and won’t reliably hold onto fabric. Barbs, by design, provide a simple, fast, and reliable grip on various textiles without needing extra mechanisms, making them the best choice for maintaining contact.

The main idea here is how the electrode remains anchored to the target so electrical contact isn’t lost during movement. Small barbs are used because they grip fabric fibers, locking the electrode onto a subject’s clothing and keeping it in place as the person moves. This secure attachment ensures a consistent electrical connection, which is essential for the device to work effectively.

Clips would rely on squeezing or pressure to stay attached, and they can slip off or lose grip. Hooks might snag, but they’re less reliable for maintaining steady contact and can damage fabric or shift easily. Magnets depend on metallic material in the clothing, which isn’t dependable and won’t reliably hold onto fabric. Barbs, by design, provide a simple, fast, and reliable grip on various textiles without needing extra mechanisms, making them the best choice for maintaining contact.