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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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 […]
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 […]
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Quantization of Electric Charge
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 […]
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Vibration of String
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 […]
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Sonometer Experiment
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 […]
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Melde’s Experiment
Science > Physics > Stationary Waves > Melde’s Experiment In this article, we shall study Melde’s experiment of vibrating string and find the relation between the number of loops and the tension in the string. Melde’s Experiment for Longitudinal or Parallel Position: Melde’s experiment set up consists of a light string is tied to one […]
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Vibrations of Air Columns
Science > Physics > Stationary Waves > Vibrations of Air Columns In this article, we shall study the vibrations of air columns in a pipe closed at one end, opened at other and in a pipe open at both ends. Vibrations of Air Columns in a Pipe Closed at One End: Consider a pipe closed […]
Science > Physics > Stationary Waves > Resonance In this article, we shall study the phenomenon of resonance, its characteristics, advantages, and disadvantages. Free Vibrations: A body or a system capable of vibrating, when displaced from its position of rest, vibrates with a certain definite frequency. This frequency is characteristic of the body or the […]