MAGNETIC EFFECT OF CURRENT, CBSE CLASS XII, PHYSICS NOTES PART V

 

CBSE CLASS XII, MAGNETIC EFFECT OF CURRENT, PHYSICS NOTES-(PART V)

MAGNETIC EFFECT OF CURRENT


NCERT Class XII Physics Chapter 4th. Magnetic Effect of Current Notes

Study Material and Notes of Chapter 3 Magnetic Effect of current Class XII Physics

ACCORDING TO THE CBSE SYLLABUS 2025-26

APPLICATION OF AMPERE’S LAW TO A STRAIGHT CONDUCTOR

Let us make a circular loop of radius r around an infinitely long straight wire carrying current I. As the field lines are circular, the magnetic field at any point of the circular loop is directed along the tangent to the circle at that point. 

By symmetry, the magnitude of magnetic field is same at every point of the circular loop. 

From Ampere’s  circuital law








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