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Physics

Gauss’s Theorem and its Applications

Science > Physics > Electrostatics > Gauss’s Theorem and its Applications In this article, we shall study the gauss’s theorem and its applications to find electric intensity at a point outside charged bodies of different shapes. Gauss’s Theorem: Statement:  Total Normal Electric Induction over any closed surface of any shape in an electric field is […]

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Physics

Numerical Problems on Electric Intensity Due to Charged Sphere

Science > Physics > Electrostatics > Electric Intensity Due to Charged Sphere In this article, we shall study to solve problems to find electric intensity at a point due to a charged sphere. Example – 01: A charge of 0.002 µC is given to an isolated conducting sphere of radius 0.5 m. Calculate the electric […]

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Physics

Mechanical force per Unit Area of Charge Conductor

Science > Physics > Electrostatics > Mechanical force per Unit Area of Charge Conductor In this article, we shall study the cause of mechanical force acting on a charged conductor and hence shall derive an expression for mechanical force per unit area of the conductor. Expression for Mechanical Force per Unit Area of a Charged […]

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Physics

Dielectrics

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Science > Physics > Electrostatics > Dielectrics In this article, we shall study dielectric materials (dielectrics), their working and types. Dielectrics are non-conducting substances. In these materials, free-moving electrons are not present. Thus there is no question of the movement of charge. When the dielectric material is kept in an external electric field, a dipole […]

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Physics

Concept of Capacity of Conductor

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Science > Physics > Electrostatics > Concept of Capacity of Conductor In this article, we shall study the concept of the capacity of conductor, capacitors and their types, and energy stored in the capacitor. Concept of Capacity of Conductor: Whenever an electric charge is deposited on a conductor, its potential increases. The deposited charge spreads […]

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Physics

Capacitors in Series and Capacitors in Parallel

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Science > Physics > Electrostatics > Capacitors in Series and Capacitors in Parallel In this article, we shall study two simple capacitors circuits: capacitors in series and capacitors in parallel. We shall derive an expression for equivalent of such combination. Equivalent Capacity of Condensers in Series: A number of condensers are said to be joined […]

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Physics

Van De Graff Generator

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Science > Physics > Electrostatics > Van De Graff Generator In this article, we shall study the principle, construction, working and uses of Van De Graff generator. Principle of Van De Graff Generator: Van de Graff generator uses two principles of electrostatics. The electric discharge takes place in air or gases at pointed conductors readily. This […]

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Physics

Numerical Problems on Current-Carrying Solenoid

Science > Physics > Magnetism > Numerical Problems on Current-Carrying Solenoid In this article, we shall study problems on current-carrying solenoid and current-carrying coil suspended in a uniform magnetic field. Example – 01: A solenoid has a core of material of relative permeability 4000. The number of turns is 1000 per metre. A current of […]

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Physics

Numerical Problems on Magnetic Susceptibility

Science > Physics > Magnetism > Numerical Problems on Magnetic Susceptibility In this article, we shall study problems to calculate magnetization, magnetic susceptibility, magnetic permeability, etc. μ = B / H μr  = B / B0 Example – 01: Find the magnetization of the bar magnet of length 10 cm and cross-sectional area 3 cm2. […]

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Physics

Magnetization and Magnetic Intensity

Science > Physics > Magnetism > Magnetization and Magnetic Intensity In this article, we shall study the origin of magnetism, magnetic intensity, magnetization, and magnetic susceptibility. Magnetic Field Due to Current-Carrying Coil: The magnetic induction at a point on the axis at a distance of ‘x’ from the centre of a circular coil of radius […]