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Question: Answered & Verified by Expert
In case of infinite long wire electric field is proportional to
PhysicsElectrostaticsAIIMSAIIMS 2007
Options:
  • A \(\frac{1}{r}\)
  • B \(\frac{1}{r^2}\)
  • C \(\frac{1}{r^3}\)
  • D \(r^0\)
Solution:
1704 Upvotes Verified Answer
The correct answer is: \(\frac{1}{r}\)
Electric field due to an infinite long wire of linear charge density \(\lambda\) is given by
\(E=\frac{\lambda}{2 \pi \varepsilon_0 r}\)

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