Magnetism and Matter

I : at high temperature, ferromagnet becomes paramagnet.

II : at high temperature, domains of ferromagnet will break

Let the true dip is $\delta$ $$ and apparent dip is $\delta \text{'}$ $$ , so

$tan\delta \text{'}=\frac{B_V}{B_{H}cos\theta }=\frac{tan\delta }{cos\theta }\Rightarrow tan\delta =tan\delta \text{'}cos\theta =tan45°cos30°=1\times \frac{\sqrt[]{3}}{2}$

$\Rightarrow \delta =ta{n}^{-1}\left(\frac{\sqrt[]{3}}{2}\right)$

$\frac{\Delta M}{M}=\frac{\Delta \mu }{\mu }=\frac{250}{500}=\frac{1}{2}$

Gauss law for magnetism states that total magnetic flux through a closed surface S will be zero. It is one of the four maxwell's equations that is useful in understanding the prinicples of electromagnetism. When understood in depth, the law implies that magnetic field lines form closed loops since t

A ring magnet is a type of strong and permanent magnet which is made from the alloy of iron, boron and neodymium. These are the part of rare-earth magnet family which is the reason behind their the strongest magnetic properties amongst all other permanent magents.

A U-shaped magnet is another type of bar magnet. This is known as a horseshoe magnet since its shapes resembles the object called horseshoe. The two ends of this U-shaped magnet are its magnetic poles. Configration of these magnetic poles creates a concentrated magnetic field. This concentrated magn

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Given, x = 99

${\mu }_0=4\pi \times 10^{-7}Wb/A-m$

${}_{}$ ${\mu }_m=?$   (Permeability of the material)

${\mu }_m=4\pi \times 10^{-5}$

$x=$ retentivity

$y=$ coercivity

$\mathrm{z}=$ saturation magnetization