Question #6f780
1 Answer
Explanation:
1- In order to understand the solution, we need to remember the following important points.
- An electric field is formed around the electric charges.
- Electric field is a vectorial quantity.
- The direction of the electric field generated by the electric charge with positive sign is directed outward from the charge.
- The direction of the electric field generated by the electric charge in the negative sign is directed from the outside to the charge.
- We calculate the electric field intensity at a point far from an electric charge by using the following formula...
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The growth of r (away from load) causes the intensity of the electric field to decrease.
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In the given diagram space is colored by dividing into three regions.
- Two vectors representing the electric field in each region are drawn.
- Note the directions of the vectors in the regions.
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The point we are looking for can not be in the yellow zone (because the vectors are in the same direction).
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In order for the electric field to be zero, the magnitudes of the vectors must be equal and opposite.
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Which of the green or blue regions may be zero? we need to answer the question.
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To make it easier to understand, let's take the distance between points equally (indicated by x).
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Now we can solve the problem.
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Let's calculate the electric field at point K.
- Let's calculate the electric field at point R.
- Electric field intensity is proportional to the magnitude of the load and is inversely proportional to the distance.
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The point we're looking for is not in the blue zone.
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The intensity of the electric field can be zero in the green-painted space zone.