(A) : Coulomb force is a long range force.
(R) : Coulomb force acts between two charged particles.

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'A' is true and 'R' is false

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

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

'A' is false and 'R' is true

answer is B.

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Detailed Solution

Coulomb force always acts between two charges i.e. $F = \frac{k q_{1} q_{2}}{r^{2}}$

Hence reason is true

Coulomb forces are inversely proportional to the square of radius which means force decreases slowly with the increase of distance. Hence, the Coulomb force is a long-range force

The correct option is B. Since reason is not the correct explanation of assertion.

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