Two point charges $-$q and +q are placed at a distance of L, as shown in the figure.The magnitude of electric field intensity at a distance R(R >> L) varies as:

Question

Two point charges $-$q and +q are placed at a distance of L, as shown in the figure.

The magnitude of electric field intensity at a distance R(R >> L) varies as:

${1 \over {{R^2}}}$

${1 \over {{R^3}}}$

${1 \over {{R^4}}}$

${1 \over {{R^6}}}$

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