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AP EAMCET202523 May 2025Morning ShiftPhysicsMagnetic Effects of CurrentActual

A long straight wire of circular cross-section of radius ' a ' is carrying a steady current. The current is distributed uniformly across the cross-section of the wire. The ratio of the magnetic fields at points 0.5 a and 1.5 a from the centre of the wire is

Options

  1. A1: 1
  2. B2: 3
  3. C1: 2
  4. D3: 4

Correct answer

D. 3: 4

Step-by-step solution

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