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Yogita Ingle 5 years, 6 months ago
In electrostatics, the permeability is the measure of the ability of the material to allow the formation of magnetic lines of force or magnetic field within. It speaks on the ability of magnetization that a material possesses for the applied magnetic field. In simpler words, we can define magnetic permeability as “the extent to which magnetic field lines can enter substance.” or “The power of conducting magnetic field lines by a substance.” It is denoted by the Greek alphabet μ.
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If atoms lose or gain electrons, they become charged particles called ions. When an atom loses electrons, it becomes a positively charged ion, or cation. When an atom gains electrons, it becomes a negative charged ion, or anion.
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Principal: :The lightning conductor is a metal rod or conductor mounted on top of a building and electrically connected to the ground through a thick wire, to protect the building in the event of lightning. The upper edge of the lightning rod has several pointed structures which points toward different directions in the sky. If lightning strikes the building it will preferentially strike the rod. Thick wires or stripes of copper or aluminium are used to conduct the lightning harmlessly to the ground. As the thick conductor offers a low resistance path for the electricity, the current will flow to the ground through it easily, without affecting the building. The lower edge of the conductor or stripe is connected to a heavy earthing rod, which is properly earthed.
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Yogita Ingle 5 years, 6 months ago
Gauss’s Law
According to Gauss’s law, the total of the electric flux out of a closed surface is equal to the charge enclosed divided by the permittivity. The total electric flux through a closed surface is zero if no charge is enclosed by the surface.
- Gauss’s law is true for any closed surface, no matter what its shape or size.
- The term q on the right side of Gauss’s lawincludes the sum of all charges enclosed by the surface. The charges may be located anywhere inside the surface.
- In the situation when the surface is so chosen that there are some charges inside and some outside, the electric field [whose flux appears on the left side of Eq. (1.31)] is due to all the charges, both inside and outside S. The term q on the right side of Gauss’s law, however, represents only the total charge inside S.
- The surface that we choose for the application of Gauss’s law is called the Gaussian surface. The Gaussian surface can pass through a continuous charge distribution.
- Gauss’s law is useful for the calculation of the electrostatic field for a symmetric system.
- Gauss’s law is based on the inverse square dependence on distance contained in the Coulomb’s law. Any violation of Gauss’s law will indicate departure from the inverse square law.
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Yogita Ingle 5 years, 6 months ago
Gauss’s Law
According to Gauss’s law, the total of the electric flux out of a closed surface is equal to the charge enclosed divided by the permittivity. The total electric flux through a closed surface is zero if no charge is enclosed by the surface.
- Gauss’s law is true for any closed surface, no matter what its shape or size.
- The term q on the right side of Gauss’s lawincludes the sum of all charges enclosed by the surface. The charges may be located anywhere inside the surface.
- In the situation when the surface is so chosen that there are some charges inside and some outside, the electric field [whose flux appears on the left side of Eq. (1.31)] is due to all the charges, both inside and outside S. The term q on the right side of Gauss’s law, however, represents only the total charge inside S.
- The surface that we choose for the application of Gauss’s law is called the Gaussian surface. The Gaussian surface can pass through a continuous charge distribution.
- Gauss’s law is useful for the calculation of the electrostatic field for a symmetric system.
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The principle when the light rays falls on the smooth surface, the angle of reflection is equal to the angle of incidence, also the incident ray, the reflected ray, and the normal to the surface all lie in the same plane.
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Arvind Yadav 5 years, 5 months ago
2Thank You