A current I produces a magnetic field B at the centre of the circular coil. If the coil rewound to double its number of turns then what is the magnetic field at its centre in terms of B?

The magnetic field at the centre of the current carrying coil

The magnetic field at the centre of current carrying coil is

Magnetic field induction at the centre of a circular coil shown in the figure is

A current passing through a circular coil of two turns produces a magnetic field B as its centr. 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

A circular coil carrying a certain, current produces a magnetic field B_(0) at its centre. The coil is now rewound so a to have 3 turns and the same currents is passed through it. The new magnetic field at the centre is

Magnetic Field On Axis And Centre Of Circular Coil