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
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
- A
$4 : 1 $ exactly
- B
$4 : 1$ approx.
- C
$8 : 1 $ exactly
- D
$8 : 1$ approx.
Similar Questions
The magnetic moment of the arrangement shown in the figure is ............. $M$
The magnetic moment of the arrangement shown in the figure is ............. $M$
A short bar magnet with its north pole facing north forms a neutral point at $P$ in the horizontal plane. If the magnet is rotated by $90^o$ in the horizontal plane, the net magnetic induction at $P$ is (Horizontal component of earth’s magnetic field = ${B_H}$)
A short bar magnet with its north pole facing north forms a neutral point at $P$ in the horizontal plane. If the magnet is rotated by $90^o$ in the horizontal plane, the net magnetic induction at $P$ is (Horizontal component of earth’s magnetic field = ${B_H}$)
Give some of the commonly known ideas regarding magnetism.
Give some of the commonly known ideas regarding magnetism.
What happens when the small bar magnet kept on the glass and iron filings sprinkled on glass ?
What happens when the small bar magnet kept on the glass and iron filings sprinkled on glass ?
Force between two unit pole strength placed at a distance of one metre is
Force between two unit pole strength placed at a distance of one metre is