The Potential as a Function of Position X Is Shown

question 50

Multiple Choice

The potential as a function of position x is shown in the graph in the figure.Which statement about the electric field is true?

• A) The electric field is zero at x = 0, its magnitude is at a maximum at x = 5 cm, and the field is directed to the right there.
• B) The electric field is zero at x = 5 cm, its magnitude is at a maximum at x = 0, and the field is directed to the right there.
• C) The electric field is zero at x = 0, its magnitude is at a maximum at x = 15 cm, and the field is directed to the left there.
• D) The electric field is zero at x = 10 cm, its magnitude is at a maximum at x = 5 cm, and the field is directed to the left there.

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Definitions:

Null Hypothesis

The hypothesis tentatively assumed true in the hypothesis testing procedure.

Parameter

A numerical characteristic of a population, as opposed to a statistic, which is a characteristic of a sample.

Critical Value

A threshold value in hypothesis testing, beyond which there is evidence against the null hypothesis.

T Value

A value derived from a T-distribution used in hypothesis testing and in generating confidence intervals.