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## Homework Statement

Very thin wire bent into the shape of a quarter-circle with the radius

*R*is uniformly charged with electric charge

*q*.

Calculate the potential and intensity of the electric field at point

*A*, which lies on a line perpendicular to the plane of the semicircle and is passing through the center of its curvature at a distance

*a*from the center. The wire is in the vacuum.

## Homework Equations

I am integrating through the length of the conductor, where all the variables seem to be the constants. Is it correct?

How would it look like if I took into account the changing of the angle?

## The Attempt at a Solution

see the picture

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this is my first post, greetings to all of you and thanks for the help

Lukas