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

 

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

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.

MAGNETIC FIELD AT THE CENTRE OF A CIRCULAR CURRENT LOOP

Let us consider a circular loop of wire of radius r carrying current (I). We wish to calculate its magnetic field at the centre O. The entire loop can be divided into a large number of small current elements. 
Consider a current element of the loop. According to Biot-Savart law, the magnetic field at the centre O due to this element is,






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