Question

state biots savarat law use it to obtain an expression for magnetic field at the centre of a current carryting circular loop.​

Answer 1

Answer:

A current passing through a circular coil of two turns produces magnetic field B at its centre. The coil is then produces magnetic field B at its centre. The coil is then rewound so as to have four turns and the same current is passed through it. The magnetic field at its centre now is.

Answer 2

Answer:

Explanation:

Where, k is a constant, depending upon the magnetic properties of the medium and system of the units employed. In the SI system of unit,Therefore, the final Biot-Savart law derivation

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