A circular coil has one tum and carries a current i. The same wire is wound into a smaller coil of 4 turns and the same current is passed through it. The field at the centre :

A circular coil of one turn carries a current I. The same wire is then bent to from a smaller circular coil of 2 turns and the same current is passed through it. What is the relations between the fields at the centre of the coils in the second and first case ?

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

A coil of n turns and radius R carries a current I it is unwound and rewound to make a new coil of radius (R )/(2) and the same current is passed through it what is the ratio of the magnetic moment of the new coil and the original coil ?

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 current passing through a circular coil of two turns produces a 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

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

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