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 […]
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 […]
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 […]
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. […]
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 […]
Science > Physics > Magnetism > Magnetic Induction and Magnetic Potential at any Point In this article, we shall study to derive an expression for magnetic induction and magnetic potential at any point in a magnetic field created by a bar magnet. Magnetic Induction at Any Point Due to a Short Bar Magnet: Consider a […]
Science > Physics > Electrostatics > Quantization of Electric Charge In this article, we shall study the concept of quantization of electric charge and the principle of conservation of electric charges. The fact that all observable charges are always some integral multiple of elementary charge e = 1.6 × 10-19 C is known as quantization […]
Science > Physics > Electrostatics > Charging a Body and Detection of Charge In this article, we shall study methods of charging of body and different apparatus used for detection of charge on the body. Charging of Body: Charging by Friction: When a body is rubbed to another, there is a transfer of electrons from […]
Science > Physics > Stationary Waves > Vibration of String In this article, we shall study different modes of vibrations of string, the expression for its fundamental frequency of vibration. Concept of Overtones: Whenever a string or an air column is set into vibrations, the vibrations consist of the fundamental frequency accompanied by certain higher […]
Science > Physics > Stationary Waves > Sonometer Experiment In this article, we shall study construction and working of sonometer, and its use to verify the laws of string. Laws of Vibrating String: Law of Length: If the tension in the string and its mass per unit length of wire remains constant, then the frequency […]