SCERT Maharashtra solutions for Physics [English] 12 Standard HSC chapter 11 - Magnetic materials [Latest edition]

The magnetic susceptibility is given by ______ 

The relation between relative permeability and magnetic susceptibility is given by ______ 

If an electron of charge (-e) and mass m_e revolves around the nucleus of an atom having an orbital magnetic moment m₀, then the angular momentum of the electron is ______   

If m₀ and L denote the orbital angular moment and the angular momentum of the electron due to its orbital motion, then the gyromagnetic ratio is given by ______ 

Relative permeability of iron 5500, then its magnetic susceptibility will be ______ 

What is the magnetization of a bar magnet having a length of 6 cm and the area of cross-section 5 cm²?

A magnetic material of susceptibility 3 × 10⁻⁴, and magnetic intensity is 4 × 10⁻⁴ Am⁻¹. Then The magnetization in the units of Am⁻¹ is ______.

Give gyromagnetic ratio. 

What is stated in terms of Bohr magneton? 

What is magnetization?

What does the ratio of magnetization to magnetic intensity indicate? 

The relative permeability of a medium is 0.075. What is its magnetic susceptibility? 

The moment of a magnet (15 cm × 2 cm × 1 cm) is 1.2 A-m². What is its intensity of magnetization?  

The electron in the hydrogen atom is moving with a speed of 2.5 × 10⁶ m/s in an orbit of a radius of 0.5 Å. What is the Magnetic moment of the revolving electron?    

Show that the orbital magnetic dipole moment of a revolving electron is `("evr")/2`

Derive the quantity for Bohr magneton and also state its value.

Define Magnetization.

State formula and S.I. unit of Magnetization.

Calculate the gyromagnetic ratio of electrons.

(given e = 1.6 × 10^-19 C, m_c = 9.1 × 10^-31 kg)

An iron rod of the area of cross-section 0.1m² is subjected to a magnetizing field of 1000 A/m. Calculate the magnetic permeability of the iron rod. [Magnetic susceptibility of iron = 59.9, magnetic permeability of vacuum = 4π x 10^-7 S. I. unit]  

A solenoid has a core of material with relative permeability 500 and its windings carry a current of 1 A. The number of turns of the solenoid is 500 per meter. Calculate the magnetization of the material. 

Define magnetic intensity.

Explain the magnetization of a material. 

Obtain an expression for the orbital magnetic moment of an electron rotating about the nucleus in an atom.

Define gyromagnetic ratio.

Find relation for Bohr magneton.

When a plate of magnetic material of size 10 cm × 0.5 cm × 0.2 cm (length, breadth, and thickness respectively ) is located in the magnetizing field of 0.5 × 10⁴ Am^-1 then a magnetic moment of 5 Am² is induced in it. Find out magnetic induction in the plate.   

A magnet of magnetic moment 3Am² weighs 75 g. The density of the material of the magnet is 7500 kg/m³. what is magnetization? 

Find the relative permeability, if the permeability of metal is 0.1256 TmA^-1 

Define Magnetization.

State SI unit of Magnetization.

State dimensions of Magnetization.

Derive the relation between magnetic field intensity(H) and magnetization(M) for a magnetic material placed in a magnetic field. 

Explain the origin of magnetism in material, hence find a magnetic moment of an electron revolving around the nucleus of an atom. 

An electron in an atom is revolving around the nucleus in a circular orbit of a radius of 5.3 x 10^-11 m, with a speed of 2 x 10⁶ m/s. Find the resultant orbital magnetic moment and angular momentum of the electron. [e = 1.6 x 10^-19 C, m_e= 9.1 x 10^-31 kg]