Question 115: Magnetism and Matter

Question

Needles ${N_1}$, ${N_2}$ and ${N_3}$ are made of ferromagnetic, a paramagnetic and a diamagnetic substance respectively. A magnet when brought close to them will

Accepted Answer

Ferromagnetic substance has magnetic domains whereas para-magnetic substances have magnetic dipoles which get attracted to a magnetic field. Diamagnetic substances do not have magnetic dipole but in the presence of external magnetic field due to their orbital motion of electrons these substances are repelled.

Answer

attract ${N_1}$ and ${N_2}$ strongly but repel ${N_3}$

Answer

attract ${N_1}$ strongly, ${N_2}$ weakly and repel ${N_3}$ weakly

Answer

attract ${N_1}$ strongly, but repel ${N_2}$ and ${N_3}$ weakly

Answer

attract all three of them

Magnetism and Matter

Needles {N_1}, {N_2} and {N_3} are made of ferromagnetic, a paramagnetic and a diamagnetic substance respectively. A magnet when brought close to them will

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