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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 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 of a photodiode - a PN junction that ...

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 ...

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

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 Wheatstone bridge is a special circuit consisting of 5 ...

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

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

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

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

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

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

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

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

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

Let's explore the graph of binding energy per nucleon vs Mass number, and make predictions of the nature of nuclear force, and ...

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

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