A Parallel Plate Capacitor of Area a = 30 Cm²

question 122

Multiple Choice

A parallel plate capacitor of area A = 30 cm² and separation d = 5 mm is charged by a battery of 60 V. If the air between the plates is replaced by a dielectric of κ = 4 with the battery still connected, then what is the ratio of the initial charge on the plates divided by the final charge on the plates?

• A) 4.3
• B) 1
• C) 16
• D) 0.25
• E) 4.0

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Definitions:

Parametric Counterpart

Refers to statistical tests or models that assume a certain distribution shape for the underlying data, as opposed to non-parametric methods which do not.

Kruskal-Wallis Test

A nonparametric test used to determine if there are statistically significant differences between two or more groups of an independent variable on a continuous or ordinal dependent variable.

P-value

A statistical measure that helps scientists determine the significance of their research results, indicating the probability of observing the results if the null hypothesis is true.

Coffee Shop

A retail establishment that sells coffee, tea, and other beverages, often accompanied by snacks or light meals.