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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 ...

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 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 ...

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

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 ...

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

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

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 ...

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

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

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 ...

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

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 Let's explore the working principle of solar cells (photovoltaic ...