Electricity & Megnetism
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Structure of atom for class 9 and 11
what is Atom? “Atom is the smallest particle of an element that possesses the unique characteristics of that element.” All matter is composed of atoms; all atoms consist of electrons, protons, and neutrons except normal hydrogen, which does not have…
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what is Difference between induced emf and induced current?
There are many ways to produce induced emf figures illustrated one of them. Consider a straight piece of wire of length l placed in the magnetic field of a permanent magnet. The wire is connected to a sensitive galvanometer. This…
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What is difference between electric field and electric field intensity?
The Basic Difference between electric field and electric field intensity is that, The electric field is a region around a charge in which it exerts an electrostatic force on other charges. While the strength of the electric field at any…
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Kirchhoff’s voltage and current law with examples
What is Kirchhoff’s Voltage Law? Kirchhoff’s voltage law is a fundamental circuit law that states that the algebraic sum of all the voltages around a closed path is zero or, in other words, the sum of the voltage drops equals…
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Joules law of heating equation
State Joule’s law of heating “The heat produced in a conductor is: (1) Directly proportion the square of current passing through the conductor,(H ∝ I²) keeping R and t constant; (2) Directly proportion to the resistance of the conductor (H ∝…
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Types of electric charge and their properties
Electric charge is defined as: “An electrical property of matter that exists because of access or a deficiency of electrons.”There are two types of electric charges, positive charges, and negative charges. Like charges repel each other while unlike charges attract…
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Lenz’s Law of electromagnetic induction
What is Lenz’s Law of electromagnetic induction? Lenz’s law states that:”The direction of induced current is always so as to oppose the change which causes the current.” A mathematical expression of Faraday’s law of electromagnetic induction was derived as: ε…
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Magnetic hysteresis loop for ferromagnetic materials
The value of flux density for any value of current is always greater when the current is decreasing, then when it is increasing magnetism lags behind the magnetizing current. This process is known as hysteresis. Hysteresis Loop definition To investigate…
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coulomb’s and newton’s gravitational law: differences and similarities
The difference between Coulomb’s law and gravitational law is provided here. If you want to learn Brief differences b/w law of Electrostatic and Universal law of gravitation or gravitational law, then you are at the right place. Keep reading.. Comparison…