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Inductance
Inductance is a fundamental property of electric circuits that describes how a changing electric current creates and responds to magnetic fields. When current flows through a wire, it produces a magnetic field around that wire.…
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Interference
Interference is one of the most striking demonstrations of the wave nature of physical phenomena. It occurs when two or more waves meet in space and time, causing the total displacement at any point to…
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Flux
Flux in physics is a measure of how much of something passes through a surface. The “something” depends on the context: it might be an electric field, a magnetic field, a fluid, or even the…
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Field
A field in physics is a physical quantity assigned to every point in space and time, introduced to describe interactions that cannot be fully captured by forces acting instantaneously between separated objects. Instead of thinking…
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Drift Velocity
Drift velocity is a fundamental concept in electricity and solid-state physics that describes the average velocity with which charged particles move through a conductor when an electric field is applied. Although charges inside a metal—typically…
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Elasticity
Elasticity is a fundamental concept in physics that describes how materials respond when forces act upon them, deforming their shape or size. When an external force stretches, compresses, twists, or bends an object, the material…
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Electric Current
Electric Current stands as one of the cornerstone ideas in physics and electrical science, forming the very foundation of how we understand the movement of charges in conductive pathways and the mechanisms by which energy…
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Electric Charge
Electric Charge stands as one of the deepest principles in physics, shaping how matter interacts and how the visible universe holds itself together. At the heart of every atom, every current, and every spark of…
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Displacement
Displacement is one of the most fundamental ideas in physics, yet it is also one of the most frequently misunderstood. At first glance, it may seem interchangeable with distance, but the two describe very different…
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Degree of Freedom
In physics, the degree of freedom stands as one of the most fundamental yet far-reaching ideas, connecting diverse branches such as mechanics, thermodynamics, quantum theory, and statistical mechanics. At its heart, this concept quantifies how…