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Question: Answered & Verified by Expert
According to Gauss' Theorem, electric field of an infinitely long straight wire is proportional to
PhysicsElectrostaticsJEE Main
Options:
  • A $r$
  • B $\frac{1}{r^2}$
  • C $\frac{1}{r^3}$
  • D $\frac{1}{r}$
Solution:
2902 Upvotes Verified Answer
The correct answer is: $\frac{1}{r}$
$e=\frac{\lambda}{2 \pi \varepsilon_0 r}$ $\Rightarrow E \propto \frac{1}{r}$

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