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

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

Transformers step up (increase) or step down (decrease) AC voltage using the principle of electromagnetic induction - mutual ...

A moving coil galvanometer works on the principle that a current-carrying coil placed in a magnetic field, experiences a torque.

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

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

Biot Savart law states that the magnetic field due to a tiny current element at any point is proportional to the length of the current ...

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 ...

Let's explore the working of a photodiode - a PN junction that converts light into electricity - its working, its applications, and why ...

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

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

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

Phasors are rotating vectors having the length equal to the peak value of oscillations, and the angular speed equal to the angular ...

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

Huygen's principle states that every point on a wavefront behaves as a source for secondary waves, whose common tangent ...

... and videos for Class 12 Physics here - https://www.khanacademy.org/science/in-in-class-12th-physics-india Khan Academy is a ...

Wheatstone bridge is a special circuit consisting of 5 resistors. When the resistances in the adjacent arms have the same ratio, ...

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

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