If You Increase the Charge on a Parallel-Plate Capacitor from 3

question 33

Multiple Choice

If you increase the charge on a parallel-plate capacitor from 3 µC to 9 µC and increase the plate separation from 1 mm to 3 mm,the energy stored in the capacitor changes by a factor of

• A)27
• B)9
• C)3
• D)8
• E)1/3

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Definitions:

Covariance

A measure of how two random variables move in relation to each other, indicating the direction of their linear relationship.

Covariance

A measure indicating the extent to which two variables change in tandem, helping to assess the degree to which they move in relation to each other.

Correlation Coefficient

A statistical measure that calculates the strength and direction of a linear relationship between two variables on a numerical scale from -1 to 1.

Standard Deviations

A measure of the dispersion of a set of data from its mean, often used in finance to quantify the volatility of returns.