A Capacitor Consists of a Set of Two Parallel Plates

question 75

Multiple Choice

A capacitor consists of a set of two parallel plates of area A separated by a distance d. This capacitor is connected to a battery that maintains a constant potential difference between the plates. If the separation between the plates is doubled, the magnitude of the electrical energy stored on the capacitor will

• A) double.
• B) quadruple.
• C) be cut in half.
• D) be cut in fourth.
• E) not change.

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Definitions:

Blood-Brain Barrier

A selective barrier that prevents certain substances in the bloodstream from entering the brain tissue, protecting the brain from infections and toxins.

Hormones

Biological chemicals that serve as messengers, coordinating bodily functions by transmitting signals from one cell to another.

Pituitary Gland

A pea-sized gland at the base of the brain that produces hormones influencing various bodily functions.

Hypothalamus

A crucial part of the brain that regulates many bodily functions such as temperature, hunger, thirst, and circadian rhythms.