The experiment examines the electric filed on the surface of plates covered unif

Question

The experiment examines the electric filed on the surface of plates covered uniformly with low-conducting coating. Each plate has imbedded over the coating a pair of high conducting shapes (electrodes). You will experiment with three configurations: two circles, a circle and a segment, and two parallel segments. Give a list of the three configurations in descending order of electric field uniformity in the area between the electrodes, i.e. first is the configuration with most uniform electric field, last is the one with least uniform electric field.

When mapping the equipotentials on the plates with different electrode configurations you may find that some have significant areas with uniform distribution of the equipotential lines. If the distance between such lines is 0.5 cm, what is the electric field there (in units SI)? Assume the applied potential difference between the electrodes is as recommended in the manual.

Explanation / Answer

1-The most uniform would be the two parallel segments plates

2-The segment and circle

3-The circle-circle.

The reason is the segment-segment has the most area at equal distance, then the electric field will be most uniform.on the other hand, the circle-circle has the least uniform electric field because the distance decreases more and more with the roundness of both circles.

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In the case of configurations with significant areas with uniform distribution of the equipotential lines.

we can say that the electric field is constant, the magnitude depends on the applied potential difference between the electrodes.

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