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https://www.khanacademy.org/science/in-in-class-12th-physics-india Self-inductance is the tendency of a coil to resist changes in ...

Two equal and opposite charges separated by some distance constitute a dipole. The product of the charge and distance ...

Drift velocity is the average velocity with which electrons 'drift' in the presence of an electric field. It's the drift velocity (or drift ...

https://www.khanacademy.org/science/in-in-class-12th-physics-india A moving coil galvanometer works on the principle that a ...

https://www.khanacademy.org/science/in-in-class-12th-physics-india Wheatstone bridge is a special circuit consisting of 5 ...

https://www.khanacademy.org/science/in-in-class-12th-physics-india Let's explore the working of a photodiode - a PN junction that ...

https://www.khanacademy.org/science/in-in-class-12th-physics-india Biot Savart law states that the magnetic field due to a tiny ...

Huygen's principle states every point on the current wavefront acts as a source of secondary spherical waves. These secondary ...

https://www.khanacademy.org/science/in-in-class-12th-physics-india Transformers step up (increase) or step down (decrease) AC ...

https://www.khanacademy.org/science/in-in-class-12th-physics-india Let's explore the working principle of solar cells (photovoltaic ...

Huygen's proposed that light is a longitudinal wave in the aether medium - a medium that pervades the entire universe. The set of ...

https://www.khanacademy.org/science/in-in-class-12th-physics-india Huygen's principle states that every point on a wavefront ...

Let's explore what displacement current is and how it corrects Ampere's law. Khan Academy is a nonprofit organization with the ...

Let's explore, logically, the working principle of a slide-wire potentiometer. A potentiometer can measure voltages, with higher ...

Gauss law says the electric flux through a closed surface = total enclosed charge divided by electrical permittivity of vacuum.

This video visualizes the counter intuitive phenomenon of the transformers, when voltage is stepped up, the current gets stepped ...

When changing current in one coil induces an EMF in the other, the phenomenon is called mutual induction. The strength of the ...

Ampere's circuital law states that the closed-loop integral of B.dl (also called the 'circulation of magnetic field') always equals ...

EMF is the work done by the cell in moving a coulomb of charge across its terminals. It represents the energy transferred per ...

The magnetic field inside a ferromagnet lags the vacuum field, and this lagging is called the hysteresis. Let's explore this ...