A Parallel-Plate Capacitor Is Attached to a Fixed Voltage Supply

question 87

Multiple Choice

A parallel-plate capacitor is attached to a fixed voltage supply.If the plates are then separated to double the initial value,what happens to the energy stored by the capacitor?

• A)It halves,go figure!
• B)It stays the same since the volume doubles while the electric field halves.
• C)It doubles since the volume between the plates doubles.
• D)It quadruples since both the volume and the field double in this case.

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Definitions:

Limbic System

Part of the brain involved with emotions and olfaction; includes the cingulate gyrus, hippocampus, habenular nuclei, parts of the basal ganglia, the hypothalamus (especially the mammillary bodies, the olfactory cortex, and various nerve tracts).

Sensory Input

Information received by the sensory organs and transmitted to the brain.

Parietal Lobe

A region of the cerebral cortex involved in processing sensory information related to touch, pressure, temperature, and spatial orientation.

Recognize Faces

The cognitive ability to identify and understand human faces, highlighting the complex processing abilities of the brain.