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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 Let's explore the working of a photodiode - a PN junction that ...

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

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 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 A moving coil galvanometer works on the principle that a ...

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

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

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

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

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

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

The electric potential at a point in space indicates how much potential energy a coulomb of charge would have at that point.

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

... ready for your exam and help you fall in love with Physics, find the complete bank of exercises and videos for Class 12 Physics ...