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NEET2009PhysicsMagnetic Effects of CurrentActual

A current I₁ carrying wire A B is placed near another long wire C D carrying current I₂ . If wire A B is free to move, it will have

Options

  1. Arotational motion only
  2. Btranslational motion only
  3. Crotational as well as translational motion
  4. Dneither rotational nor translational motion

Correct answer

C. rotational as well as translational motion

Step-by-step solution

Since the magnetic field, due to current through wire C D at various locations on wire A B is not uniform, therefore, the wire A B , carrying current I₁ is subjected to variable magnetic field due to which, neither the force nor the torque on the wire A B will be zero. As a result of which the wire A B will have both translational and rotational motions.

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