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Standard XII

Physics

How to Visualize Electric Fields

Figure shows ...

Question

Figure shows some of the electric field lines due to three point charges $q_{1}, q_{2}$ and $q_{3}$ of equal magnitude. What are the signs of each of the three charges?

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Solution

Electric field lines go away from charge $q_{1} a n d q_{3}$ , therefore these charges are positive.
field line come towards the charge $q_{2}$ , therefore this charge is negative.

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Figure shows some of the electric field lines due to three point charges q1,q2 and q3 of equal magnitude. What are the signs of each of the three charges?

Electric field lines go away from charge q1andq3, therefore these charges are positive.field line come towards the charge q2 , therefore this charge is negative.

Figure shows some of the electric field lines due to three point charges $q_{1}, q_{2}$ and $q_{3}$ of equal magnitude. What are the signs of each of the three charges?

Electric field lines go away from charge $q_{1} a n d q_{3}$ , therefore these charges are positive.
field line come towards the charge $q_{2}$ , therefore this charge is negative.