Dielectrics: a Parallel-Plate Capacitor Has a Capacitance of 10 MF

question 30

Multiple Choice

Dielectrics: A parallel-plate capacitor has a capacitance of 10 mF and is 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. What is the voltage now across the capacitor?

• A) 80 V
• B) 20 V
• C) 10 V
• D) 5.0 V
• E) 2.5 V

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Definitions:

Pareto Optimal

A situation where resources are distributed in such a manner that it's not feasible to rearrange them to benefit someone without adversely affecting at least another individual or preference standard.

Initial Endowment

The initial quantity of goods, resources, or wealth that an individual or entity possesses at the start of a period or game.

Pareto Optimal

A distribution of resources from which it is impossible to reallocate in order to make any individual better off without making at least one individual worse off.

Initial Endowment

The initial quantity of assets, goods, or resources that an agent or economy possesses at the start of a period.