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Intensity of Electromagnetic Waves Intensity of Electromagnetic Waves :- The intensity of electromagnetic (EM) waves at a point refers to the average amount of energy crossing per second per unit area normally around that point during the propagation of EM wave. It is a measure of the wave’s power and is proportional to the…
Relation Between Magnetic Permeability and Magnetic Susceptibility Relation Between Magnetic Permeability and Magnetic Susceptibility :- When a magnetic material is placed in a current carrying solenoid, then the total magnetic field in the core of the solenoid is :- …..(1) Here B0 = Magnetic field due to free current in the solenoid…
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Magnetic Susceptibility Magnetic susceptibility is the property of a material that determines how easily it will be magnetized when placed in an external magnetising field (H). When a magnetic material is placed in a magnetising field (H), a magnetic dipole moment (M) starts getting induced in that material. The total magnetic moment produced per…
Magnetic Permeability Magnetic Permeability (μ) :- The property of a medium by which it allows magnetic field lines to pass through it is called magnetic permeability of that medium. Types of Magnetic Permeability Magnetic permeability can be divided into 2 parts :- Absolute Magnetic Permeability μ Relative Magnetic Permeability μr (1) Absolute Magnetic…
Magnetising Field | Magnetising Force | Magnetising Intensity Magnetising Field | Magnetising Force | Magnetising Intensity :- Suppose, you have a solenoid with n number of turns per unit length and i is the electric current flowing in it. When a magnetic material is placed in the core of the solenoid, the total magnetic…
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Intensity of Magnetisation Intensity of Magnetisation :- When a substance is placed in an external magnetic field, the atomic dipoles of the substance become partially or completely aligned. When this happens, a net magnetic moment is developed in every microscopic volume of the substance, hence The value of the total magnetic moment produced per…
Gauss Law in Magnetism Gauss Law in Magnetism :- Pay attention to the field lines of electric-dipole and magnetic-dipole in the picture given in the article Properties of Magnetic Field Lines :- In the above figure (C), as many electric field lines enter the closed Gaussian surface L2 as they emerge from it. This…
The Electrostatic Analog The Electrostatic Analog :- In electrostatics we see the following results due to an electric dipole at a point located far away from it :- Electric field on the axis of an electric dipole, …..(1) Electric field at the equator (equatorial line) of an electric dipole, …..(2)…
Mobility Class 12 Physics | Mobility Mobility Class 12 Physics | Mobility :- Electrical conductivity of a material is due to moving charge carriers. In metals these mobile charge carriers are electrons, in ionized gases these are electrons and positively charged ions and in electrolytes they can be both positive and negative ions. Mobility…
How To Find The Equivalent Resistance of a Complex Circuit How To Find The Equivalent Resistance of a Complex Circuit :- To find the equivalent resistance of complex circuits we have to identify the equipotential points in the circuit and connect them. The identity of equipotential points is that the circuit is symmetrical relative to…
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