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MHT CET202411 May 2024Evening ShiftPhysicsMagnetic Effects of CurrentActual

A current carrying circular loop of radius ' R ' and current carrying long straight wire are placed in the same plane. The current through circular loop and long straight wire are ' I_C ' and ' 1 w ' respectively. The perpendicular distance between centre of the circular loop and wire is ' d '. The magnetic field at the centre of the loop will be zero when separation ' d ' is equal to

Options

  1. ARI _ w I _ C
  2. BR I_C I_w
  3. CI _ C RI _ w
  4. DI _ w RI _ C

Correct answer

A. RI _ w I _ C

Step-by-step solution

Magnetic field due to straight wire = ₀ I_w 2 d Magnetic field due to circular loop = ₀ I_C 2 R As magnetic field at centre is zero array ll & ₀ I_w 2 d = ₀ I_c 2 R & d= R I_w I_c array

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