Which term describes the condition of having positive and negative charges or magnetic or electric poles?

• A. Charge
• B. Current
• C. Potential
• D. Polarity

Answer: (D)

Polarity describes the condition of having two opposite ends—positive and negative charges, or north and south magnetic poles. It’s about how those opposite signs or poles are arranged in a system. In electricity, objects can be charged positively or negatively, and in magnets, you have opposite poles. That setup—the presence of two distinct, opposite ends—is what polarity refers to.

Charge is just the property of having a positive or negative amount of electricity; current is the flow of that charge; potential is the energy per unit charge at a point. None of those describe the existence of two opposite ends, which is why polarity is the best fit here.