List of top Physics Questions on Magnetism and matter asked in AP EAMCET

A current-carrying coil experiences a torque due to a magnetic field. The value of the torque is 80% of the maximum possible torque. The angle between the magnetic field and the normal to the plane of the coil is

A wire shaped in a regular hexagon of side 2 cm carries a current of 4 A. The magnetic field at the centre of the hexagon is.

The relation between \(\mu\) and \(H\) for a specimen of iron is \(\mu = \left[ \frac{0.4}{H} + 12 \times 10^{-4} \right] \text{Hm}^{-1}\). The value of \(H\) which produces flux density of 1 T will be (\(\mu\) = magnetic permeability, \(H\) = magnetic intensity)

A charge ‘q’ is spread uniformly over an isolated ring of radius ‘R’. The ring is rotated about its natural axis with angular speed \( \omega \). The magnetic dipole moment of the ring is:

A compass needle oscillates \(20\) times per minute at a place where the dip is \(45^\circ\) and the magnetic field is \(B_1\). The same needle oscillates \(30\) times per minute at a place where the dip is \(30^\circ\) and magnetic field is \(B_2\). Then \(B_1:B_2\) is