Charging consists of the transfer of negatively charged particles called - electrons, Law of Electric Charges - Like charges repel and opposite charges attract., The unit of electric charge is - coulomb (C),, 1 A. s= - 1C, Units of μC (microcoulombs) - 10-6C, nC (nanocoulombs) - 10-9C, q/e= - N, e(Np-Ne)= - q, The total electric charge of an isolated system is conserved. - Law of Charge Conservation, no free movement of electrons occurs in - insulators, conductors is - Materials that conduct electricity well, Semiconductors are of two kinds: - intrinsic and extrinsic., Engineers produce extrinsic semiconductors by doping, - Semiconductors doped with electron donors are called n-type (n stands for, Materials are ..... only at very low temperatures. - superconducting, Giving a static charge to an object is a process known as - electrostatic charging., grounding - taking away of charge, what is this - ball conductor, Coulomb’s law, electric permittivity of free space unit - C2/Nm2,

physics chapter one

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