A long wire carrying a steady current is bent into a circular loop of one turn. The magnetic field at the centre of the loop is B. It is then bent into a circular coil of n turns, find the magnetic field at the centre of this coil.

A long wire carrying a steady current is bent into a circular loop of

1.	A long wire carrying a steady current is bent into a circular loop of one turn. The magnetic field at the centre of the loop is B. It is then bent into a circular coil of n turns, find the magnetic field at the centre of this coil.
Answer» A long wire carrying a steady current is bent into a circular loop of one turn. The magnetic field at the centre of the loop is B. It is then bent into a circular coil of n turns, find the magnetic field at the centre of this coil.

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A long wire carrying a steady current is bent into a circular loop of one turn. The magnetic field at the centre of the loop is B. It is then bent into a circular coil of n turns, find the magnetic field at the centre of this coil.

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