A coil of N turns and radius R carries a current I. It is unwound and rewound to make another coil of radius `R//2`, current remaining the same. Calculate the ratio of magnetic moments of the new coil and the original coil.

A circular coil of N turns and radius R carries a current I. It is unwound and rewound to make another coil of radius R/2, current I remaining the same. Calculate the ratio of the magnetic moments of the new coil and the original coil.

A circular coil of N turns and radius R carries a current I. It is unwound and rewound to make another coil of radius R/2, current I remaining the same. Calculate the ratio of the magnetic moments of the new coil and the orginal coil

A circular coil of N turns and radius R carries a current I. It is unwound and rewound to make another coil of radius R//2. Current I remaining the same. Calculate the ratio of the magnetic moments of the new coil and the original coil.

A circular coil of N turns and radius R carries a current I. It is unwound and rewound to make another coil of radius R//2. Current I remaining the same. Calculate the ratio of the magnetic moments of the new coil and the original coil.

A circular coil of N Turns and diameter d carries a current I. It is unwound and rewound to make another coil of diameter 2d , current I remaining the same. Calculate the ratio of the magnetic moments of the new coil and the original coil.

A circular coil of N turns and diameter d carries a current I . It is unwound and rewound to make another coil of diameter 2d , current I remaining the same . Calculate the ratio of the magnetic moments of the new coil and the original coil .

A circular coil of 'N' turns and diameter 'd' carries a current 'I'. It is unwound and rewound to make another coil of diameter '2d' and current 'I' remaining the same. Calculate the ratio of the magnetic moments of the new coil and the original coil.

A circular coil of n turns and radius R carries a current I. It is unwound and rewound to make another square coil of side ‘a’ keeping number of turns and current same. Calculate the ratio of magnetic moment of the new coil and the original coil.