List of top Physics Questions on Magnetic properties of materials

A diamagnetic liquid is filled in a U-tube. One arm of a U-tube is placed in an external magnetic field with the meniscus in line with the field. The level of the liquid in that arm will

The region inside a current carrying toroid is filled with a material (Niobium) having susceptibility \(χ = 2.6\times 10^{-5}\). The percentage increase in the magnetic field in the presence of Niobium over that without it, is

Two wires of same length are bent to form the circular loop with two turns and a square loop of one turn. Both of them carry same current. The ratio of magnetic moment of circular loop of two turns to that of square loop is

The magnetic moment produced in a sample of 2 gram is \(8\times 10^{-7}\,\text{A/m}^2\). If its density is \(4 \text{g/cm}^3\) then the magnetization of the sample is

An iron rod is placed parallel to magnetic field intensity 1000 A/m. The magnetic flux through the rod is \(3\times 10^{-4}\) Wb and its cross-sectional area is \(1.5 \text{cm}^2\). The magnetic permeability of rod in \(\text{Wb/}_{\text{A-m}}\) is

Which of the following figure best represents the variation of magnetic susceptibility (\(χ\)) with temperature for a diamagnetic substance?

The product of magnetic susceptibility (\(χ\)) and absolute temperature (T) is constant for a

A rod with a circular cross-section area \(2\) cm\(^2\) and length \(40\) cm is wound uniformly with \(400\) turns of an insulated wire. If a current \(0.4\) A flows in the wire winding, the total magnetic flux produced inside the winding is \(4π\times 10^{-6}\) Wb. The relative permeability of the rod is
(Given permeability of vacuum \(μ_0 = 4π\times 10^{-7}\) N m A\(^{-2}\))

An iron rod is placed parallel to magnetic field intensity 2000 A/m. The magnetic flux through rod is \(6\times 10^{-4}\) wb and its cross sectional area is 3 cm\(^2\). The magnetic permeability of the rod in wb/A-m is

The material selected for making a permanent magnet should have:

As temperature increases, at Curie temperature

Regarding the magnetic property, the TRUE statement is

Among the following magnetic materials, the diamagnetic material is

When a bar magnet placed parallel to the magnetic field is rotated by $45^\circ$, the amount of work done is $2.07J$. The amount of work to be done to rotate the magnet further by $45^\circ$ is

If an air core solenoid with self-inductance of $0.5\,mH$ is filled with soft iron of relative permeability of $1500$, its self-inductance becomes

Which law states that magnetic susceptibility is inversely proportional to absolute temperature?

Which of the following is diamagnetic

The magnetic field ((B)) inside a long solenoid carrying current ' (i) ' with an iron core is (( \mu_0 =) vacuum permeability, (\chi =) susceptibility)

The magnetic susceptibility of iron is 5499 . The relative permeability of iron will be

Susceptibility of a paramagnetic substance is

The magnetic field ((B)) inside a long solenoid carrying current ' (i) ' with an iron core is (( \mu_0 =) vacuum permeability, (\chi =) susceptibility)

If a magnetic material has magnetic susceptibility \( \chi = -0.5 \), then its relative magnetic permeability \( \mu_r \), and the type of material is

The magnetic field ((B)) inside a long solenoid carrying current ' (i) ' with an iron core is (( \mu_0 =) vacuum permeability, (\chi =) susceptibility)

The diamagnetic and paramagnetic materials at 300 K are respectively,