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KCET2021PhysicsElectrostatics

Electric field due to infinite, straight uniformly charged wire varies with distance r as

Options

  1. Ar
  2. B1 r
  3. C1 r²
  4. Dr²

Correct answer

B. 1 r

Step-by-step solution

Electric field intensity due to infinity straight uniformly charged wire at some distance r is, E= 2 ₀ r where, = the surface charge density. If , and ₀ are constants, then E 1 r

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