List of top Physics Questions on Magnetic moment asked in MHT CET

A thin circular wire carrying current \(I\) has magnetic moment \(M\). The shape of the wire is changed to a square and it carries the same current. It will have magnetic moment \(M_1\). The ratio \(M\) to \(M_1\) is
A particle of charge '\(q\)' and mass '\(m\)' moves in a circular orbit of radius '\(r\)' with angular speed '\(ω\)'. The ratio of the magnitude of its magnetic moment to that of its angular momentum depends upon
A circular coil of 'N' turns and diameter 'd' carries current 'I'. It is unwound and rewound to make another coil of diameter '2d', current 'I' remaining the Same. The ratio of magnetic moments of the new coil to the original coil is
The magnetic moments associated with two closely wound circular coils a and b of radius \(r\) and \(2r\) respectively are equal if (where \(N_a\), \(I_a\) and \(N_b\), \(I_b\) are number of turns and current in A and B respectively)
A circular coil of N turns and diameter D carries current I. It is unwound and rewound to make another coil of diameter 2D, current I remaining the same. The ratio of magnetic moments of the original coil to the new coil is
A bar of iron having magnetic moment 2.4 Am$^2$ weighs 66 g. If the density of the material of the bar is 7700 kg/m$^3$, the intensity of magnetisation in Am$^{-1}$ is ______.
The work done in turning a magnet of magnetic moment 'M' by an angle of 90$^\circ$ from the meridian is 'n' times the corresponding work done to turn it through an angle of 60$^\circ$ where the value of 'n' is ______.
The magnetic moment of electron due to orbital motion is proportional to ($n=$ principal quantum number)
An electron in a circular orbit of radius $0.05 \text{ nm}$ performs $10^{14}$ revolutions/second. What is the magnetic moment due to the rotation of electron? ($e = 1.6 \times 10^{-19} \text{ C}$)
Magnetic moment of a revolving electron of charge $e$ and mass $m$ in terms of angular momentum $L$ of the electron is:
The relation between magnetic moment 'M' of revolving electron and principle quantum number 'n' is
The gyromagnetic ratio of an electron in an hydrogen atom, according to Bohr model is