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Standard XII
Physics
Question

Electric field lines
  1. can cross each other.
  2. can only bisect one another.
  3. can only intersect at right angles.
  4. should never cross one another.

A
can only intersect at right angles.
B
can cross each other.
C
can only bisect one another.
D
should never cross one another.
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Solution
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If two electric field lines crosses each other , than at the point of intersection there will be two tangents showing two different directions of net electric field which is not possible for a point in space.

Hence, electric field lines should not cross each other.

Answer-(D)

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