How is the direction of magnetic field at a point determined?

CBSE Class 10 CBSE Class 10 Science
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  1. How is the direction of magnetic field at a point determined?
  2. What is the direction of magnetic field at the centre of a current- carrying circular loop?

Answer:

  1. The direction of the magnetic field at a point can be found by placing a small magnetic compass at that point. The north end of the needle of a compass indicates the direction of magnetic field at a point where it is placed.
  2. The direction of magnetic field at the centre of a current-carrying circular loop is perpendicular to the plane of the loop.