Of the intervals shown (ignore the behaviour at the end points of the intervals), determine the interval in which $E_{x}$ has its greatest absolute value.

a b

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b c

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c d

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d e

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Solution

The correct option is A $a b$
Since $E_{x} = \frac{- δ V}{δ x};$ the greatest absolute value of $E_{x}$ corresponds to the interval in which $V$ changes most steeply. From the graph, we see that this occurs in the interval $a b$ .

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Of the intervals shown (ignore the behaviour at the end points of the intervals), determine the interval in which Ex has its greatest absolute value.

The correct option is A abSince Ex=−δVδx; the greatest absolute value of Ex corresponds to the interval in which V changes most steeply. From the graph, we see that this occurs in the interval ab.

Of the intervals shown (ignore the behaviour at the end points of the intervals), determine the interval in which $E_{x}$ has its greatest absolute value.

The correct option is A $a b$
Since $E_{x} = \frac{- δ V}{δ x};$ the greatest absolute value of $E_{x}$ corresponds to the interval in which $V$ changes most steeply. From the graph, we see that this occurs in the interval $a b$ .