1. The experiment examines the electric filed on the surface of plates covered u
ID: 2285224 • Letter: 1
Question
1. 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.
2. 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
(a) the order is the 2 segments, the segment & circle, lastly the circle-circle. it has to do with the distances between the objects, since the segment-segment has the most area at equal distance, the electric field will be most uniform. The circle-circle has the least uniform electric field because the distance decreases more and more with the roundness of both circles. the segment-circle has the intermediate electric field because the segment doesn't bend away from the circle like another circle would.
(b)
The formula of potential is given as
V = E.d
E = V / d
distance is given
As the value of electric field is found by using potential . The value of potential at each line is given then we can find the potential difference between the two lines and hence value of E by the above given formula
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.