A short magnet is allowed to fall along the axis of a horizontal metallic ring. Starting from rest, the distance fallen by the magnet in one second may be.....$m$
$4$
$5$
$6$
$7$
Two points $A$ and $B$ are situated at a distance $x$ and $2x$ respectively from the nearer pole of a magnet $2\,cm$ long. The ratio of magnetic field at $A$ and $B$ is
The current is flowing through solenoid, then solenoid acting as what ?
Points $A$ and $B$ are situated along the extended axis of $2\, cm$ long bar magnet at a distance $x $ and $2x$ $ cm$ respectively. From the pole nearer to the points, the ratio of the magnetic field at $ A$ and $B$ will be
Write a brief history of magnet.
Two identical dipoles each of magnetic moment $1.0\, A-m^2$ are placed at a separation of $2\,m$ with their axes perpendicular to each other. What is the magnetic field at a point midway between the dipoles ?