Electricity & Megnetism
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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…
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How many types of inductor and their Applications?
Different types of inductor are provided here. This also includes: Inductor Definition Types Applications Inductance Lot more Keep reading What is Inductor and what does it do? When a length of wire is formed into a coil, it becomes a…
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Difference between CT scan ( Tac) and Resonance (MRI)
The Difference between CT and MRI is given here. A CT scan is a diagnostic test that uses X-rays to obtain images of the inside of the body in the form of cross-sections and three-dimensional images. An MRI allows images…
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Difference between resistance and resistivity
The basic difference between resistance and resistivity is that resistance is the opposition to the flow of current in the conductor while resistivity is the resistance of the meter cube of a wire or conductor. The SI unit of resistance…
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Difference between Thunder and lightning
The Difference between Thunder and Lightning is given here. Thunder is the sound caused by the shock wave caused by lightning when the air through which it travels is hot. Lightning is the glow caused by electrical discharges produced inside…