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Assetrion: Electric lines of force never...

Assetrion: Electric lines of force never cross each other.
Reason: Electric field at a point superimpose to give one resultant electric field

A

If both assertion and Reason are true and the Reason is correct explanation of the Assertion.

B

If both assertion and reason are true but Reason is not the correct explanation of the Assertion.

C

If Assertion is true, but the Reason is false.

D

If both assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
a
Electric field lines of force can never intersect each other, because if they do so then at the point of intersection two tangent can be drawn which would mean two directions of force at that point which is impossible.
If there are `n` point charges `q_(1),q_(2).....q_(n)` then each of them will produce the same intensity at any point which it would have produced in the absence of other point charges, Hence, intensity of `vec(E )` is resultant of
`vec(E )_(1),vec(E )_(2).....vec(E )_(n)` as `vec(E )_(1)+vec(E)_(2)+.....+vec(E )_(n)`
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Knowledge Check

  • Assetrion: Electric lines of force cross each other. Reason: Electric field at a point superimpose to give one resultant electric field.

    A
    If both assertion and Reason are true and the Reason is correct explanation of the Assertion.
    B
    If both assertion and reason are true but Reason is not the correct explanation of the Assertion.
    C
    If Assertion is true, but the Reason is false.
    D
    If both assertion and reason are false

  • Assertion: Electric lines of force cross each other Reason: Electric field at a point superimpose to give one resulant electric field

    A
    if both Assertion and Reason are true and the Reason is correct explanation of the Assertion.
    B
    If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion.
    C
    if Assertion is true, but the Reason is false.
    D
    if both Assertion and Reason are false

  • Electric field at a point is:

    A
    Continuous if there is no charge at that point
    B
    Always continuous
    C
    Continuous, if there is charge at that point
    D
    discontinuous only if there is a negative charge at that point

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    Which of the following is correct regarding electric lines of force ? (i) Electric lines of force diverge from +ve and converge at a -ve charge (ii) Electric lines of force never cross each other , otherwise there will be two directions of electric field at a point of intersection which is not possible (iii) Closer are the electric lines of forces , stronger is the field , and further apart lines of force ,weaker is electric field (iv) The electric lines of forces are parallel for a uniform electric field

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