Properties of Magnetic Materials

A paramagnetic liquid is filled in a glass $\mathrm{U}$-tube of which one limb is placed between the pole pieces of an electromagnet. When the field is switched on the liquid in the limb which is in the field will

Which of the following is diamagnetic?

When a diamagnetic substance is brought near North or South pole of a bar magnet, it is

The temperature at which a ferromagnetic material becomes paramagnetic is called a

The given figure represents a material which is

Liquid oxygen remains suspended between the two pole faces of a magnet because it is

Which one of the following is a non-magnetic substance?

Identify the paramagnetic substance

If a diamagnetic solution is poured into a $U$-tube and one arm of this $U$-tube placed between the poles of a strong magnet with the meniscus in a line with the field, then the level of the solution will

An example of a diamagnetic substance is

Assertion: The properties of paramagnetic and ferromagnetic substances are not affected by heating.
Reason: As temperature rises, the alignment of molecular magnets gradually decreases.

Assertion: The ferromagnetic substances do not obey Curie's law.

Reason: At Curie point, ferromagnetic substances start behaving as a paramagnetic substance.

Assertion: Basic difference between an electric line and magnetic line of force is that former is discontinuous and the latter is continuous or endless.

Reason: No electric lines of forces exist inside a charged conductor but magnetic lines do exist inside a magnet.

Assertion: If one arm of a U-tube containing a diamagnetic solution is placed in between the poles of a strong magnet with the level in line with the field, the level of the solution falls.

Reason: Diamagnetic substances are repelled by the magnetic field.

Assertion: Steel is not attracted by a magnet

Reason: Steel is not a magnetic substance.

The only property possessed by ferromagnetic substance is

Assertion: ${\chi }_{\mathrm{n}}-T$ graph for a diamagnetic material is a straight line parallel to $T$-axis.

Reason: This is because the susceptibility of a diamagnetic material is not affected by temperature.