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MHT CET202015 Oct 2020Morning ShiftPhysicsMagnetic Effects of CurrentActual

A circular arc of radius 'r' carrying current 'I' subtends on angle 16 at its centre. The radius of a metal wire is uniform. The magnetic induction at the centre of cirçlar arç is

Options

  1. A₀ I 16 r
  2. B₀ I 32 r
  3. C₀ I 64 r
  4. D₀ I 8 r

Correct answer

C. ₀ I 64 r

Step-by-step solution

B_ a t 0 = ₀ I 4 ( 1 .)B_ a t 0 = ₀ I 64

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