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Question: 1 / 400

How is a capacitor designed to function?

branching off from the trachea into the lungs

unit of heat required to raise the temperature of water

an electrical device used to store electrical charge

A capacitor is an electrical device that is specifically designed to store electrical charge by using two conductive plates separated by an insulating material. When a voltage is applied to the capacitor, one plate becomes positively charged while the other plate becomes negatively charged. This allows the capacitor to store energy, similar to how a battery does.

Option A is incorrect because it describes the function of the trachea and lungs, not a capacitor. A capacitor has no relation to the respiratory system.

Option B is incorrect because it describes the unit of heat, not the function of a capacitor. A capacitor's function is to store electrical charge, not heat.

Option D is incorrect because it describes a physical characteristic of a tube, not the function of a capacitor. A capacitor's function is to store electrical charge, not be long and slender with a small internal diameter.

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long and slender with a very small internal diameter

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