ELECTROMAGNETIC WAVES
DEFINITION AND CONCEPT Electromagnetic waves are produced by electromagnetic vibrations. Electromagnetic waves have electrical origin and the ability to travel… Read More »ELECTROMAGNETIC WAVES
ADEKOYA
ELECTRONICS
Conductors, insulators and semi-conductors i) An insulatoris a material or object which resists flow of heat (thermal insulator) or electrical… Read More »ELECTRONICS
RADIOACTIVITY
Introduction Radioactivity was discovered by Henri Becquerel in 1869. In 1898, Marie and Pierre Curie succeeded in chemically isolating two… Read More »RADIOACTIVITY
PHOTOELECTRIC EFFECT
Photoelectric effect was discovered by Heinrich Hertz in 1887. Photoelectric effect is a phenomenon in which electrons are emitted from… Read More »PHOTOELECTRIC EFFECT
ELECTROMAGNETIC INDUCTION
Electromagnetism is the effect resulting from the interaction between an electric current and a magnetic field. This effect brings about… Read More »ELECTROMAGNETIC INDUCTION
ELECTROMAGNETIC SPECTRUM
What is Electromagnetic?. Electromagnetic spectrum is a continuum of all electromagnetic waves arranged according to frequency and wavelength. It includes… Read More »ELECTROMAGNETIC SPECTRUM
UNIFORM CIRCULAR MOTION
Introduction Circular motion is the motion of bodies travelling in circular paths. Uniform circular motion occurs when the speed of… Read More »UNIFORM CIRCULAR MOTION
FLOATING AND SINKING
Any object in a liquid whether floating or submerged experiences an upward force from the liquid; the force is known… Read More »FLOATING AND SINKING
THE GAS LAWS
Pressure law This law states that “the pressure of a fixed mass of a gas is directly proportional to the… Read More »THE GAS LAWS
QUANTITY OF HEAT
What is heat?. Heat is a form of energy that flows from one body to another due to temperature differences… Read More »QUANTITY OF HEAT