Electric Field diagram question

In summary, the figures in question depict electric field lines and the task is to determine which rules are being violated in each drawing. For the first figure, rule 2 is violated due to different charges, while for the second figure, rule 3 is violated due to lack of symmetry. It is also difficult to maintain rule 5 when other rules are being broken.
  • #1
Samuel1321
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http://imgur.com/a/Hg23p 1. Homework Statement
In each of the figures below some electric field lines are drawn. But in most cases, there are mistakes. For each drawing, select which of the above rules are broken or if the diagram is essentially correct.

http://imgur.com/a/Hg23p

Homework Equations


Rule 1: direction from + to −
Rule 2: number proportional to charge
Rule 3: radial symmetry close to charge
Rule 4: spacing inversely proportional to field magnitude
Rule 5: field tangent to any line

3. The Attempt at a Solution

For the 1st question: Rule 1 is not violated, Rule 2 is violated since the charge is different, Rule 3 is not violated since there is symmetry, Rule 4 is not violated, Rule 5 is not violated

For the 2nd question: Rule 1 is not violated since it is going to the negative charge, Rule 2 I'm not sure, Rule 3 is violated since there is no symmetry, Rule 4 I don't know, Rule 5 is violated the electric field is not tangent to the field line

Thanks!
 
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  • #2
Regarding the first one, it is hard to break rule two without also breaking rule 4.

Regarding the second one, why aren't you sure about rule 2? You were very sure about the first one. Why should this be different? I could make the same comment about rule 4.

All I can say about rule 5 is that it is hard not to violate when other rules are broken.
 

1. What is an electric field diagram?

An electric field diagram is a visual representation of the strength and direction of the electric field at different points in space surrounding a charged object.

2. How is an electric field diagram created?

An electric field diagram is created by placing a test charge at different points in the space surrounding a charged object and measuring the force on that test charge. The direction and magnitude of the force is represented by arrows on the diagram.

3. What information can be determined from an electric field diagram?

An electric field diagram can provide information about the strength and direction of the electric field at different points in space, as well as the relative strength of the electric field at different distances from the charged object.

4. How is the distance between charged objects represented in an electric field diagram?

The distance between charged objects is represented by the spacing of the arrows on the electric field diagram. Closer spacing between arrows indicates a stronger electric field, while a larger distance between arrows indicates a weaker electric field.

5. Can an electric field diagram be used to predict the motion of a charged particle?

Yes, an electric field diagram can be used to predict the motion of a charged particle. The charged particle will experience a force in the direction of the electric field, causing it to accelerate in that direction.

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