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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 Self-inductance is the tendency of a coil to resist changes in ...

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.

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

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

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

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

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

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

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

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

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

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

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

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

Electric flux measures how much the electric field 'flows' through an area. The flow is imaginary & calculated as the product of field ...

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

... 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 ...

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

A tiny current loop act's as a tiny magnet technically called a magnetic dipole. The strength of that tiny magnet, the magnetic dipole ...

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