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