🚀 Top 10 Physics Terminologies Every Class 12 Student Must Master!
A quick guide to the most important terms you can’t afford to miss in Class 12 Physics
1. Electric Field
The region around a charged particle where its electric influence can be felt. It is defined as force per unit positive charge.
2. Magnetic Flux
The measure of the magnetic field passing through a surface area. It is crucial in understanding electromagnetic induction.
3. Capacitance
The ability of a capacitor to store charge per unit potential difference. Unit: Farad (F).
4. Permittivity
A material property that affects the force between two charges placed in the medium. Vacuum permittivity is a universal constant.
5. EMF (Electromotive Force)
The energy supplied per unit charge by a source like a battery or generator. It is not a force but a potential difference.
6. Alternating Current (AC)
An electric current that changes its magnitude and direction periodically. Used widely in power transmission.
7. Wavelength
The distance between two consecutive crests or troughs of a wave. Symbol: λ (lambda).
8. Interference
The phenomenon of superposition of two waves leading to regions of constructive and destructive patterns.
9. Polarization
The phenomenon in which vibrations of light waves are restricted in a particular direction.
10. Photoelectric Effect
The emission of electrons from a metal surface when light of sufficient frequency falls on it. Explained by Einstein using photons.