Physics

Problem

Illustration 1.28 Two point charges

Q_a

and

Q_b

are positioned at points

A

and

B

. The field strength to the right of charge

Q_b

on line that passes through two charges varies according to a law that is represented schematically in the figure accompanying the problem (without employing a definite scale). The field strength is assumed to be positive if its direction coincides with the positive direction of

x

-axis. The distance between the charges is

l = 21\,\text{cm}

. Find - the signs of the charges. - the ratio of the absolute values of charges

Q_a

and

Q_b

. - the coordinate

x

of the point where the field strength is maximum. ![](https://storage.googleapis.com/diraq-contents/PROD/homework-question-parsing/marker/2b80478682b04bc0a6a2f8c5fe810ec0/a28fca9a7503d40707ef5273befe1be4_img.jpg)

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