Q.

(A) : No two electric lines of force can intersect each other.
(R) : Tangent at any point of electric line of force gives the direction of electric field.

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a

'A' is true and 'R' is false

b

Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A'

c

Both 'A' and 'R' are true and 'R' is the correct explanation of 'A'.

d

'A' is false and 'R' is true

answer is A.

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Detailed Solution

If two electric lines intersect each other there will be two tangents and thus two directions of the electric field at that point which is not possible. So, electric lines do not intersect 

The Tangent at any point on the electric line gives the direction of an electric field.

The correct option is A.

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(A) : No two electric lines of force can intersect each other.(R) : Tangent at any point of electric line of force gives the direction of electric field.