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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 ...

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

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

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

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 Biot Savart law states that the magnetic field due to a tiny ...

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

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

Most materials are either weakly attracted (paramagnets) or weakly repelled (diamagnets) by magnets. Diamagnetism is an ...

The power factor represents the fraction of the available power (also called apparent power) that is consumed (also called the true ...

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

To select charged particles of specific velocity, we can use the cross fields - perpendicular electric & magnetic fields. Particles ...

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

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

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

Everyone says Physics is tough till you actually figure out how to study it smart. I didn’t take coaching, didn’t solve 5000 ...

A Meter bridge is used to calculate resistance values with high accuracy. They work on the principle of a balanced Wheatstone ...

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

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

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