DIAMAGNETIC SUBSTANCES

REASON OF PARAMAGNETIC, DIAMAGNETIC AND FERROMAGNETIC SUBSTANCES

Which of the following substances are diamagnetic? Bi, Al, Na, Cu, Ca and Ni.

Which of the following substances are diamagnetic? Copper, Aluminium, Sodium, Bismuth

chi_(1) and chi_(2) are susceptinilities of diamagnetic substance at temperatures T_(1)K and T_(2)K respectively. Then

If X_(1) and X_(2) are the susceptibilities of a diamagnetic substance at a absoulte temperature T_(1) and T_(2) where T_(2) gt T_(1) then

Needles N_(1) , N_(2), and N_(3) are made of a ferromagnetic, a paramagnetic and a diamagnetic substance respectively . A magnet when brought close to them will