A Parallel-Plate Capacitor Has a Capacitance of 10 MF and Charged

question 20

Multiple Choice

A parallel-plate capacitor has a capacitance of 10 mF and charged with a 20-V power supply.The power supply is then removed and a dielectric material of dielectric constant 4.0 is used to fill the space between the plates.How much energy is now stored by the capacitor?

• A) 250 mJ
• B) 125 mJ
• C) 500 mJ
• D) 62.5 mJ
• E) 1200 mJ

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Definitions:

Consciousness

The quality or state of being aware of an external object or something within oneself, often regarded as a complex mental state.

Neural Pathway

A sequence of neurons that transmit signals between different areas of the brain or from the brain to the rest of the body.

Reward Pathway

A brain circuit that reinforces rewarding stimuli and behaviors, typically involving dopamine pathways critical for motivation and pleasure.

Mesolimbic Dopamine

The mesolimbic dopamine pathway is a key part of the brain's reward system, involved in the regulation of pleasure, reward, and reinforcement learning.