alleryStart learning →Electric field lines can never intersect each other because
Athey always travel in perfectly straight lines
Btwo field directions at one point are impossible
Cthey begin and end on the very same charge
Dthe field magnitude is the same everywhere
Answer & Solution
Correct answer: B. two field directions at one point are impossible
1. The tangent to a field line at any point gives the direction of $\vec{E}$ there.
2. If two lines crossed, the field would have **two directions** at the crossing point, which is impossible.
3. Hence field lines never intersect.
_Source: Samacheer Kalvi Class 12 Physics Vol.1, Unit 1 'Electrostatics', §1.3.4 / Short Answer Q.7_
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