Consider Three Identical Metal Spheres, A, B, and C

question 34

Multiple Choice

Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of -2.0 µC; sphere B carries a charge of -6.0 µC; and sphere C carries a charge of +4.0 µC. Spheres A and B are touched together and then separated. Spheres B and C are then touched and separated. Does sphere C end up with an excess or a deficiency of electrons and how many electrons is it?

• A)deficiency, 6 × 10¹³
• B)excess, 3 × 10¹³
• C)excess, 2 × 10¹³
• D)deficiency, 3 × 10¹²
• E)There is no excess or deficiency of electrons.

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Definitions:

Alginate

A biodegradable polymer extracted from seaweed, used in wound dressings and as an ingredient in food and pharmaceutical products.

Foam Dressing

A type of medical dressing made of polyurethane foam that absorbs wound exudate and maintains a moist wound environment conducive to healing.

Contaminated Wound

A wound with the presence of bacteria or other pathogens that can potentially lead to infection.

Tertiary Intention

A wound care strategy where a wound is intentionally left open due to contamination and is closed later by surgical intervention after it has been cleaned.