Most electronic components & devices are made of semiconductors which are known to be sensitive to environmental conditions such as light, heat, pressure, radiation and chemical pollution, That is why they are used as...
Electronics play a key role in our life to transfer the information, entertainment, culture and also in war and in medicine to diagnose, prognosis or surgeries, Materials are classified according to their electrical conductivity...
X-rays are invisible electromagnetic waves of high energy and short wavelengths lie between the wavelengths of gamma rays and the ultraviolet rays, Rontgen discovered invisible electromagnetic waves of short wavelength ranges from 10−13 m...
The word atom goes back to a Greek origin, meaning the indivisible, Scientists put different models for the structure of the atom based on many experimental evidences, Bohr studied the difficulties faced by Rutherford’s...
Converting the mass (m) into energy (E) is related to the Einstein relation (E = mc²) which is the scientific base of the nuclear bomb where it was found that the fission of the...
Any metal contains positive ions & free electrons which can move around inside the metal but can not leave it due to the attractive forces of the surface which may be represented by a...
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