Write the Gauss’s law in equation form for electrostatics and magnetism. What is the difference between them ?
Gauss's law for electrostatic,
$\sum \overrightarrow{\mathrm{E}} \cdot \overrightarrow{\Delta \mathrm{S}}=\frac{q}{\varepsilon_{0}}$
(Where charge $q$ enclosed by a surface)
Gauss's law for magnetism,
$\sum \overrightarrow{\mathrm{B}} \cdot \overrightarrow{\Delta \mathrm{S}}=0$
The difference between the Gauss's law of magnetism and electrostatics is that isolated magnetic poles (also called monopoles) does not exist.
A bar magnet of magnetic moment $M$ is cut into two parts of equal length. The magnetic moment of each part will be ......... $M$
Ratio of magnetic intensities for an axial point and a point on broad side-on position at equal distance d from the centre of magnet will be or The magnetic field at a distance d from a short bar magnet in longitudinal and transverse positions are in the ratio
A bar magnet is cut into two equal parts then which of the following quantity may change
$(a)$ Intensity of magnetization
$(b)$ Pole strength
$(c)$ Magnetic moment
The ultimate individual unit of magnetism in any magnet is called
Two like magnetic poles of strength $ 10$ and $40$ $ SI$ units are separated by a distance $30 \,cm$. The intensity of magnetic field is zero on the line joining them