Two point charges -q and +q are placed at a distance of L, as shown in the figure. -q ~L…
Physics · NEET · NTA Exams — Electrostatics
Two point charges -q and +q are placed at a distance of L, as shown in the figure.
\(\stackrel{-q}{\leftarrow} \mathrm{~L} \longrightarrow\)
The magnitude of electric field intensity at a distance R(R >> L) varies as:
- \(\frac{1}{\mathrm{R}^{4}}\)
- \(\frac{1}{\mathrm{R}^{\mathrm{b}}}\)
- \(\frac{1}{\mathrm{R}^{2}}\)
- \(\frac{1}{\mathrm{R}^{3}}\)
Answer
(D) 1 R ^ 3
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