Magnetic field due to a short magnet at a point on its axis at distance X ,cm from middle point of m

English

Gujarati

Hindi

5.Magnetism and Matter

easy

The magnetic field due to a short magnet at a point on its axis at distance $X \,cm $ from the middle point of the magnet is $200 $ $Gauss$. The magnetic field at a point on the neutral axis at a distance $ X \,cm$ from the middle of the magnet is.....$Gauss$

A

$100$

B

$400 $

C

$50$

D

$200 $

Solution

(a)Along the axis of magnet ${B_a} = \frac{{2M}}{{{X^3}}} = 200\,guass$
$ \Rightarrow {B_a} = \frac{M}{{{X^3}}} = 100\,guass$

Standard 12

Physics

Share

Similar Questions

The distance of two points on the axis of a magnet from its centre is $10 \,cm$ and $20 \,cm$ respectively. The ratio of magnetic intensity at these points is $12.5 : 1. $ The length of the magnet will be……$cm$

medium

A vibration magnetometer consists of two identical bar magnets placed one over the other such that they are perpendicular and bisect each other. The time period of oscillation in a horizontal magnetic field is ${2^{5/4}}$ $seconds$. One of the magnets is removed and if the other magnet oscillates in the same field, then the time period in seconds is

hard

Magnetic dipole moment is a

easy

Due to a small magnet intensity at a distance $x$ in the end on position is $9$ $Gauss$. What will be the intensity at a distance $\frac{x}{2}$ on broad side on position….. $Gauss$

medium

Some equipotential surfaces of the magnetic scalar potential are shown in the figure. Magnetic field at a point in the region is

medium