Radioactive Decay; Half-Life; Decay Constant

Radioactivity is a spontaneous process. It goes on independent of external control. it is not affected by  temperature or pressure […]

Peaceful Uses of Radiation

Peaceful Uses of Radiation Although scientists have only known about radiation since the 1890s, they have developed a wide variety […]

Nuclear Energy

Nuclear Energy The protons and neutrons (nucleons) in the nucleus of each atom are held together by very powerful nuclear […]

Bohr’s theory of Atom

In 1913 Niels Henrik Bohr published his new theory of the atoms constitution. Just like Rutherford he assumed that electrons rotate around the nucleus. […]

Thompson Rutherford Model

Modern atomic theory provides a reasonably satisfactory explanation of the properties of matter, the mechanisms of chemical change and the […]

Capacitance in AC Circuits

Capacitance in AC Circuits When capacitors are connected across a direct current DC supply voltage they become charged to the […]

Reactance, Impedance, and Power relationships in AC circuits

Up to this point inductance and capacitance have been explained individually in ac circuits. The rest of this part will […]

AC in resistor, Inductor and Capacitor

Alternating current Direct current (DC) circuits involve current flowing in one direction. In alternating current (AC) circuits, instead of a […]

SS3 Second Term Physics Senior Secondary School

Welcome to Stoplearn.com online secondary school 3.  Here you can learn Physics for Senior Secondary School 3 online free of […]

Magnets and Magnetization

A magnet is a piece of material that can attract iron and other ferromagnetic material. Generators used in production of […]