The Graph in the Figure Shows the Variation of the Electric

question 40

Multiple Choice

The graph in the figure shows the variation of the electric potential V(x) (in arbitrary units) as a function of the position x (also in arbitrary units) . Which of the choices below correctly describes the orientation of the x-component of the electric field along the x-axis?

• A) Ex is positive from x = -2 to x = 2.
• B) Ex is positive from x = -2 to x = 0, and negative from x = 0 to x = 2.
• C) Ex is negative from x = -2 to x = 0, and positive from x = 0 to x = 2.
• D) Ex is negative from x = -2 to x = 2.

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Definitions:

Poisson Distribution

A probability distribution that expresses the probability of a given number of events occurring in a fixed interval of time or space when these events occur with a known constant mean rate and independently of the time since the last event.

Poisson Random Variable

Reflects the number of times a specified event occurs within a fixed interval, assuming events occur independently and at a constant rate.

Poisson Probabilities

The probability distribution that measures the probability of a given number of events happening in a fixed interval of time or space, assuming these events occur with a known constant mean rate and independently of the time since the last event.

Classified Department

A division within an organization or publication that deals with categorized or sorted information, often in the context of classified ads or internal classification.